| plasmacytoma | (noun) neoplasm of plasma cells (usually in bone marrow) | - |
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| plasmapheresis | (noun) plasma is separated from whole blood and the rest is returned to the donor | - |
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| plasmid | (noun) a small cellular inclusion consisting of a ring of DNA that is not in a chromosome but is capable of autonomous replication | Synonyms: plasmid DNA |
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| plasmin | (noun) an enzyme that dissolves the fibrin of blood clots | Synonyms: fibrinolysin |
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| plasminogen | (noun) an inactive form of plasmin that occurs in plasma and is converted to plasmin by organic solvents | - |
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| plasmodium | (noun) parasitic protozoan of the genus Plasmodium that causes malaria in humans | Synonyms: malaria parasite, Plasmodium vivax |
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| (noun) multinucleate sheet of cytoplasm characteristic of some stages of such organisms as slime molds | - |
| plaster | (noun) adhesive tape used in dressing wounds | Synonyms: adhesive plaster, sticking plaster |
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| (noun) a surface of hardened plaster (as on a wall or ceiling) | Synonyms: plasterwork |
| (noun) a medical dressing consisting of a soft heated mass of meal or clay that is spread on a cloth and applied to the skin to treat inflamed areas or improve circulation etc. | Synonyms: cataplasm, poultice |
| (noun) a mixture of lime or gypsum with sand and water; hardens into a smooth solid; used to cover walls and ceilings | - |
| (noun) any of several gypsum cements; a white powder (a form of calcium sulphate) that forms a paste when mixed with water and hardens into a solid; used in making molds and sculptures and casts for broken limbs | Synonyms: plaster of Paris |
| plasterboard | (noun) wallboard with a gypsum plaster core bonded to layers of paper or fiberboard; used instead of plaster or wallboard to make interior walls | Synonyms: gypsum board |
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| plasterer | (noun) a worker skilled in applying plaster | - |
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| plastering | (noun) the application of plaster | Synonyms: daubing |
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| plasterwork | (noun) a surface of hardened plaster (as on a wall or ceiling) | Synonyms: plaster |
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| plastic | (noun) a card (usually plastic) that assures a seller that the person using it has sufficient means of payment and that the issuer will see to it that the seller receives payment for the merchandise delivered | Synonyms: charge card, charge plate |
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| (noun) generic name for certain synthetic or semisynthetic materials that can be molded or extruded into objects or films or filaments or used for making e.g. coatings and adhesives | - |
| plasticiser | (noun) a substance added to plastics or other materials to make them more pliable | Synonyms: plasticizer |
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| plasticity | (noun) the property of being physically malleable; the property of something that can be worked or hammered or shaped without breaking | Synonyms: malleability |
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| plasticizer | (noun) a substance added to plastics or other materials to make them more pliable | Synonyms: plasticiser |
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| plastid | (noun) any of various small particles in the cytoplasm of the cells of plants and some animals containing pigments or starch or oil or protein | - |
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| plastination | (noun) a process involving fixation and dehydration and forced impregnation and hardening of biological tissues; water and lipids are replaced by curable polymers (silicone or epoxy or polyester) that are subsequently hardened | - |
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| plastique | (noun) an explosive material that is easily molded around the object it is intended to destroy | Synonyms: plastic explosive |
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| plastron | (noun) (zoology) the part of a turtle's shell forming its underside | - |
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| (noun) a large pad worn by a fencer to protect the chest | - |
| (noun) a metal breastplate that was worn under a coat of mail | - |
| (noun) the front of man's dress shirt | - |
| (noun) the ornamental front of a woman's bodice or shirt | - |
| plat | (noun) a map showing planned or actual features of an area (streets and building lots etc.) | - |
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| platan | (noun) any of several trees of the genus Platanus having thin pale bark that scales off in small plates and lobed leaves and ball-shaped heads of fruits | Synonyms: plane tree, sycamore |
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| plate | (noun) dish on which food is served or from which food is eaten | - |
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| (noun) a metal sheathing of uniform thickness (such as the shield attached to an artillery piece to protect the gunners) | Synonyms: scale, shell |
| (noun) a sheet of metal or wood or glass or plastic | - |
| (noun) a shallow receptacle for collection in church | Synonyms: collection plate |
| (noun) (baseball) base consisting of a rubber slab where the batter stands; it must be touched by a base runner in order to score | Synonyms: home, home base, home plate |
| (noun) structural member consisting of a horizontal beam that provides bearing and anchorage | - |
| (noun) a full-page illustration (usually on slick paper) | - |
| (noun) a flat sheet of metal or glass on which a photographic image can be recorded | Synonyms: photographic plate |
| (noun) the positively charged electrode in a vacuum tube | - |
| (noun) a dental appliance that artificially replaces missing teeth | Synonyms: dental plate, denture |
| (noun) any flat platelike body structure or part | - |
| (noun) a main course served on a plate | - |
| (noun) the thin under portion of the forequarter | - |
| (noun) a rigid layer of the Earth's crust that is believed to drift slowly | Synonyms: crustal plate |
| (noun) the quantity contained in a plate | Synonyms: plateful |
| plateau | (noun) a relatively flat highland | Synonyms: tableland |
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| plateful | (noun) the quantity contained in a plate | Synonyms: plate |
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| platelayer | (noun) a workman who lays and repairs railroad tracks | Synonyms: tracklayer |
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| platelet | (noun) tiny bits of protoplasm found in vertebrate blood; essential for blood clotting | Synonyms: blood platelet, thrombocyte |
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| plateletpheresis | (noun) platelets are separated from whole blood and the rest is returned to the donor | - |
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| platen | (noun) the roller on a typewriter against which the keys strike | - |
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| (noun) the flat plate of a printing press that presses the paper against the type | - |
| (noun) work table of a machine tool | - |
| plater | (noun) a skilled worker who coats articles with a film of metal (usually silver or gold) | - |
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| platform | (noun) a raised horizontal surface | - |
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| (noun) any military structure or vehicle bearing weapons | Synonyms: weapons platform |
| (noun) a woman's shoe with a very high thick sole | Synonyms: chopine |
| (noun) the combination of a particular computer and a particular operating system | - |
| (noun) a long, flat raised structure of a railway station, where people get on and off of trains | - |
| (noun) a document stating the aims and principles of a political party | Synonyms: political platform, political program, program |
| plating | (noun) the application of a thin coat of metal (as by electrolysis) | - |
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| (noun) a thin coating of metal deposited on a surface | Synonyms: metal plating |
| platinum | (noun) a heavy precious metallic element; grey-white and resistant to corroding; occurs in some nickel and copper ores and is also found native in some deposits | Synonyms: atomic number 78, Pt |
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| platitude | (noun) a trite or obvious remark | Synonyms: banality, bromide, cliche, commonplace |
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| platitudinarian | (noun) a bore who makes excessive use of platitudes | - |
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| platoon | (noun) a military unit that is a subdivision of a company; usually has a headquarters and two or more squads; usually commanded by a lieutenant | - |
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| (noun) a team of policemen working under the military platoon system | - |
| (noun) a group of persons who are engaged in a common activity | - |
| platter | (noun) a large shallow dish used for serving food | - |
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| (noun) sound recording consisting of a disk with a continuous groove; used to reproduce music by rotating while a phonograph needle tracks in the groove | Synonyms: disc, disk, phonograph record, phonograph recording, record |
| platy | (noun) small stocky Mexican fish; popular aquarium fish | Synonyms: Platypoecilus maculatus |
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| platyctenean | (noun) ctenophore have long tentacles and flattened body | - |
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| platyhelminth | (noun) parasitic or free-living worms having a flattened body | Synonyms: flatworm |
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| platypus | (noun) small densely furred aquatic monotreme of Australia and Tasmania having a broad bill and tail and webbed feet; only species in the family Ornithorhynchidae | Synonyms: duck-billed platypus, duckbill, duckbilled platypus, Ornithorhynchus anatinus |
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| platyrrhine | (noun) hairy-faced arboreal monkeys having widely separated nostrils and long usually prehensile tails | Synonyms: New World monkey, platyrrhinian |
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| platyrrhinian | (noun) hairy-faced arboreal monkeys having widely separated nostrils and long usually prehensile tails | Synonyms: New World monkey, platyrrhine |
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| platysma | (noun) either of two broad muscles located on either side of the neck and innervated by the facial nerve; extends from lower jaw to clavicle and is involved in moving the mouth and jaw | - |
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| plaudit | (noun) enthusiastic approval | Synonyms: acclaim, acclamation, eclat, plaudits |
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| plaudits | (noun) enthusiastic approval | Synonyms: acclaim, acclamation, eclat, plaudit |
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| plausibility | (noun) apparent validity | Synonyms: plausibleness |
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| plausibleness | (noun) apparent validity | Synonyms: plausibility |
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| play | (noun) gay or light-hearted recreational activity for diversion or amusement | Synonyms: caper, frolic, gambol, romp |
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| (noun) (game) the activity of doing something in an agreed succession | Synonyms: turn |
| (noun) the act of playing for stakes in the hope of winning (including the payment of a price for a chance to win a prize) | Synonyms: gambling, gaming |
| (noun) an attempt to get something | Synonyms: bid |
| (noun) a deliberate coordinated movement requiring dexterity and skill | Synonyms: maneuver, manoeuvre |
| (noun) a preset plan of action in team sports | - |
| (noun) activity by children that is guided more by imagination than by fixed rules | Synonyms: child's play |
| (noun) the act using a sword (or other weapon) vigorously and skillfully | Synonyms: swordplay |
| (noun) utilization or exercise | - |
| (noun) movement or space for movement | Synonyms: looseness |
| (noun) a dramatic work intended for performance by actors on a stage | Synonyms: drama, dramatic play |
| (noun) verbal wit or mockery (often at another's expense but not to be taken seriously) | Synonyms: fun, sport |
| (noun) a theatrical performance of a drama | - |
| (noun) a weak and tremulous light | Synonyms: shimmer |
| (noun) a state in which action is feasible | - |
| (noun) the removal of constraints | Synonyms: free rein |
| (noun) (in games or plays or other performances) the time during which play proceeds | Synonyms: period of play, playing period |
| playacting | (noun) the performance of a part or role in a drama | Synonyms: acting, performing, playing |
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| playactor | (noun) an actor who travels around the country presenting plays | Synonyms: barnstormer, play-actor, trouper |
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| playback | (noun) the act of reproducing recorded sound | - |
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| (noun) electronic equipment comprising the part of a tape recorder that reproduces the recorded material | - |
| playbill | (noun) a theatrical program | - |
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| playbook | (noun) a scheme or set of strategies for conducting a business campaign or a political campaign | - |
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| (noun) a book containing the scripts of one or more dramatic plays | - |
| (noun) a notebook containing descriptions and diagrams of the plays that a team has practiced (especially an American football team) | - |
| playbox | (noun) a box for a child's toys and personal things (especially at a boarding school) | Synonyms: play-box |
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| playboy | (noun) a man devoted to the pursuit of pleasure | Synonyms: Corinthian, man-about-town |
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| playday | (noun) time for play or diversion | Synonyms: playtime |
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| player | (noun) a theatrical performer | Synonyms: actor, histrion, role player, thespian |
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| (noun) a person who participates in or is skilled at some game | Synonyms: participant |
| (noun) someone who plays a music as a profession | Synonyms: instrumentalist, musician |
| (noun) a person who pursues a number of different social and sexual partners simultaneously | - |
| (noun) someone who takes part in an activity | Synonyms: participant |
| playfellow | (noun) a companion at play | Synonyms: playmate |
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| playfulness | (noun) activities that are enjoyable or amusing | Synonyms: fun, merriment |
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| (noun) a disposition to find (or make) causes for amusement | Synonyms: fun |
| (noun) a festive merry feeling | Synonyms: gaiety |
| playgoer | (noun) someone who attends the theater | Synonyms: theatergoer, theatregoer |
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| playground | (noun) yard consisting of an outdoor area for children's play | - |
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| (noun) an area where many people go for recreation, holidays or other purposes | Synonyms: resort area, vacation spot |
| playhouse | (noun) plaything consisting of a small model of a house that children can play inside of | Synonyms: wendy house |
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| playing | (noun) the action of taking part in a game or sport or other recreation | - |
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| (noun) the act of playing a musical instrument | - |
| (noun) the performance of a part or role in a drama | Synonyms: acting, performing, playacting |
| playlet | (noun) a short play | - |
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| playlist | (noun) a list of musical selections for performance or for broadcast by radio | Synonyms: play list |
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| playmaker | (noun) a player in a team sport who leads attacks or maneuvers in such a way that a teammate can score | - |
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| playmate | (noun) a companion at play | Synonyms: playfellow |
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| playoff | (noun) any final competition to determine a championship | - |
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| playpen | (noun) a portable enclosure in which babies may be left to play | Synonyms: pen |
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| playroom | (noun) a recreation room for noisy activities (parties or children's play etc) | Synonyms: game room, rumpus room |
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| playschool | (noun) a small informal nursery group meeting for half-day sessions | Synonyms: play group |
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| playscript | (noun) a written version of a play or other dramatic composition; used in preparing for a performance | Synonyms: book, script |
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| playsuit | (noun) a sports outfit for women or children; usually consists of shorts and a blouse | - |
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| plaything | (noun) an artifact designed to be played with | Synonyms: toy |
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| playtime | (noun) time for play or diversion | Synonyms: playday |
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| playwright | (noun) someone who writes plays | Synonyms: dramatist |
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| plaza | (noun) mercantile establishment consisting of a carefully landscaped complex of shops representing leading merchandisers; usually includes restaurants and a convenient parking area; a modern version of the traditional marketplace | Synonyms: center, centre, mall, shopping center, shopping centre, shopping mall |
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| (noun) a public square with room for pedestrians | Synonyms: piazza, place |
| polyplacophore | (noun) primitive elongated bilaterally symmetrical marine mollusk having a mantle covered with eight calcareous plates | Synonyms: chiton, coat-of-mail shell, sea cradle |
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| poplar | (noun) any of numerous trees of north temperate regions having light soft wood and flowers borne in catkins | Synonyms: poplar tree |
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| (noun) soft light-colored non-durable wood of the poplar | - |
| potamoplankton | (noun) plankton that inhabit rivers | - |
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| proctoplasty | (noun) reconstructive surgery of the anus or rectum | Synonyms: rectoplasty |
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| protoplasm | (noun) the substance of a living cell (including cytoplasm and nucleus) | Synonyms: living substance |
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| protoplast | (noun) a biological unit consisting of a nucleus and the body of cytoplasm with which it interacts | Synonyms: energid |
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| rataplan | (noun) the sound made by beating a drum | Synonyms: drumbeat, rub-a-dub |
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| rectoplasty | (noun) reconstructive surgery of the anus or rectum | Synonyms: proctoplasty |
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| replaceability | (noun) exchangeability by virtue of being replaceable | Synonyms: commutability, substitutability |
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| replacement | (noun) the act of furnishing an equivalent person or thing in the place of another | Synonyms: replacing |
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| (noun) a person or thing that takes or can take the place of another | Synonyms: substitute |
| (noun) an event in which one thing is substituted for another | Synonyms: permutation, substitution, switch, transposition |
| (noun) a person who follows next in order | Synonyms: successor |
| (noun) someone who takes the place of another person | Synonyms: alternate, surrogate |
| (noun) filling again by supplying what has been used up | Synonyms: refilling, renewal, replenishment |
| replacing | (noun) the act of furnishing an equivalent person or thing in the place of another | Synonyms: replacement |
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| replay | (noun) the immediate rebroadcast of some action (especially sports action) that has been recorded on videotape | Synonyms: action replay, instant replay |
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| (noun) something (especially a game) that is played again | Synonyms: rematch |
| rhinoplasty | (noun) cosmetic surgery to improve the appearance of your nose | Synonyms: nose job |
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| rhytidoplasty | (noun) plastic surgery to remove wrinkles and other signs of aging from your face; an incision is made near the hair line and skin is pulled back and excess tissue is excised | Synonyms: cosmetic surgery, face lift, face lifting, facelift, lift, nip and tuck, rhytidectomy |
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| roleplaying | (noun) acting a particular role (as in psychotherapy) | - |
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| sailplane | (noun) aircraft supported only by the dynamic action of air against its surfaces | Synonyms: glider |
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| sailplaning | (noun) the activity of flying a glider | Synonyms: glide, gliding, sailing, soaring |
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| sarcoplasm | (noun) the cytoplasm of a striated muscle fiber | - |
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| screenplay | (noun) a script for a film including dialogue and descriptions of characters and sets | - |
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| seaplane | (noun) an airplane that can land on or take off from water | Synonyms: hydroplane |
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| shinplaster | (noun) paper money of little value issued on insufficient security | - |
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| showplace | (noun) a place that is frequently exhibited and visited for its historical interest or natural beauty | - |
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| splash | (noun) the act of splashing a (liquid) substance on a surface | Synonyms: spatter, spattering, splashing, splattering |
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| (noun) the act of scattering water about haphazardly | Synonyms: splashing |
| (noun) a patch of bright color | - |
| (noun) the sound like water splashing | Synonyms: plash |
| (noun) a small quantity of something moist or liquid | Synonyms: dab, splatter |
| (noun) a prominent or sensational but short-lived news event | Synonyms: stir |