| stationmaster | (noun) the person in charge of a railway station | Synonyms: station agent |
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| stepsister | (noun) a sister who has only one parent in common with you | Synonyms: half-sister, half sister |
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| steradian | (noun) the unit of solid angle adopted under the Systeme International d'Unites | Synonyms: sr |
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| stercobilinogen | (noun) a chromogen formed in the intestine from the breakdown of bilirubin; yields urobilins on oxidation; some is excreted in the feces and some is resorbed and excreted in bile or urine | Synonyms: urobilinogen |
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| stercolith | (noun) a hard mass of fecal matter | Synonyms: coprolith, faecalith, fecalith |
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| sterculia | (noun) any tree of the genus Sterculia | - |
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| stereo | (adjective) designating the reproduction of sound using two or more independent audio channels | Synonyms: stereophonic, two-channel |
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| (noun) reproducer in which two microphones feed two or more loudspeakers to give a three-dimensional effect to the sound | Synonyms: stereo system, stereophonic system, stereophony |
| (noun) two photographs taken from slightly different angles that appear three-dimensional when viewed together | Synonyms: stereoscopic photograph, stereoscopic picture |
| stereochromy | (noun) a process of mural painting in which the pigment is fixed by a series of reactions between the lime, fluosilicic acid, and water glass. | - |
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| stereoisomer | (noun) any of a group of isomers in which atoms are linked in the same order but differ in their spatial arrangement. | - |
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| stereophonic | (adjective) designating the reproduction of sound using two or more independent audio channels | Synonyms: stereo, two-channel |
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| stereophony | (noun) reproducer in which two microphones feed two or more loudspeakers to give a three-dimensional effect to the sound | Synonyms: stereo, stereo system, stereophonic system |
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| stereophotography | (noun) photography producing images that appear to have depth and solidness and that are created by using a special device (called a stereoscope) to look at two slightly different photographs of something at the same time. | Synonyms: stereo photography, stereoscopic photography |
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| stereoscope | (noun) an optical device for viewing stereoscopic photographs | - |
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| stereoscopic | (adjective) of or relating to stereoscopy | - |
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| (adjective) of or relating to a stereoscope | - |
| stereoscopy | (noun) three-dimensional vision produced by the fusion of two slightly different views of a scene on each retina | Synonyms: stereoscopic vision |
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| stereotype | (noun) a conventional or formulaic conception or image | - |
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| (verb) treat or classify according to a mental stereotype | Synonyms: pigeonhole, stamp |
| stereotyped | (adjective) lacking spontaneity or originality or individuality | Synonyms: stereotypic, stereotypical, unimaginative |
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| stereotypic | (adjective) lacking spontaneity or originality or individuality | Synonyms: stereotyped, stereotypical, unimaginative |
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| stereotypical | (adjective) lacking spontaneity or originality or individuality | Synonyms: stereotyped, stereotypic, unimaginative |
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| stereotypically | (adverb) in a stereotypical manner | - |
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| sterile | (adjective) incapable of reproducing | Synonyms: infertile, unfertile |
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| (adjective) free of or using methods to keep free of pathological microorganisms | Synonyms: aseptic |
| (adjective) deficient in originality or creativity; lacking powers of invention | Synonyms: unimaginative, uninspired, uninventive |
| sterileness | (noun) (of non-living objects) the state of being free of pathogenic organisms | Synonyms: antisepsis, asepsis, sterility |
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| sterilisation | (noun) the act of making an organism barren or infertile (unable to reproduce) | Synonyms: sterilization |
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| (noun) the procedure of making some object free of live bacteria or other microorganisms (usually by heat or chemical means) | Synonyms: sterilization |
| sterilise | (verb) make infertile | Synonyms: desex, desexualise, desexualize, fix, sterilize, unsex |
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| (verb) make free from bacteria | Synonyms: sterilize |
| sterilised | (adjective) made infertile | Synonyms: sterilized |
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| steriliser | (noun) a device for heating substances above their boiling point; used to manufacture chemicals or to sterilize surgical instruments | Synonyms: autoclave, sterilizer |
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| sterility | (noun) the state of being unable to produce offspring; in a woman it is an inability to conceive; in a man it is an inability to impregnate | Synonyms: infertility |
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| (noun) (of non-living objects) the state of being free of pathogenic organisms | Synonyms: antisepsis, asepsis, sterileness |
| sterilization | (noun) the act of making an organism barren or infertile (unable to reproduce) | Synonyms: sterilisation |
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| (noun) the procedure of making some object free of live bacteria or other microorganisms (usually by heat or chemical means) | Synonyms: sterilisation |
| sterilize | (verb) make infertile | Synonyms: desex, desexualise, desexualize, fix, sterilise, unsex |
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| (verb) make free from bacteria | Synonyms: sterilise |
| sterilized | (adjective) made infertile | Synonyms: sterilised |
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| sterilizer | (noun) a device for heating substances above their boiling point; used to manufacture chemicals or to sterilize surgical instruments | Synonyms: autoclave, steriliser |
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| sterling | (adjective) highest in quality | Synonyms: greatest, superlative |
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| (noun) British money; especially the pound sterling as the basic monetary unit of the UK | - |
| stern | (adjective) severe and unremitting in making demands | Synonyms: exacting, strict |
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| (adjective) not to be placated or appeased or moved by entreaty | Synonyms: grim, inexorable, relentless, unappeasable, unforgiving, unrelenting |
| (adjective) of a stern or strict bearing or demeanor; forbidding in aspect | Synonyms: austere |
| (adjective) severely simple | Synonyms: austere, severe, stark |
| (noun) the rear part of a ship | Synonyms: after part, poop, quarter, tail |
| (noun) the fleshy part of the human body that you sit on | Synonyms: arse, ass, backside, behind, bottom, bum, buns, butt, buttocks, can, derriere, fanny, fundament, hind end, hindquarters, keister, nates, posterior, prat, rear, rear end, rump, seat, tail, tail end, tooshie, tush |
| sternal | (adjective) of or relating to or near the sternum | - |
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| sternly | (adverb) with sternness; in a severe manner | Synonyms: severely |
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| sternness | (noun) uncompromising resolution | Synonyms: strictness |
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| (noun) the quality (as of scenery) being grim and gloomy and forbidding | - |
| sternocleidomastoid | (noun) one of two thick muscles running from the sternum and clavicle to the mastoid and occipital bone; turns head obliquely to the opposite side; when acting together they flex the neck and extend the head | Synonyms: musculus sternocleidomastoideus, sternocleido mastoideus, sternocleidomastoid muscle |
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| sternpost | (noun) (nautical) the principal upright timber at the stern of a vessel | - |
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| sternum | (noun) the flat bone that articulates with the clavicles and the first seven pairs of ribs | Synonyms: breastbone |
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| sternutation | (noun) a symptom consisting of the involuntary expulsion of air from the nose | Synonyms: sneeze, sneezing |
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| sternutative | (adjective) causing sneezing | Synonyms: sternutatory |
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| sternutator | (noun) a chemical substance that causes sneezing and coughing and crying | Synonyms: sternutatory |
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| sternutatory | (adjective) tending to cause sneezing | - |
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| (adjective) causing sneezing | Synonyms: sternutative |
| (noun) a chemical substance that causes sneezing and coughing and crying | Synonyms: sternutator |
| sternwheeler | (noun) a paddle steamer having the paddle wheel in the stern | - |
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| steroid | (noun) any of several fat-soluble organic compounds having as a basis 17 carbon atoms in four rings; many have important physiological effects | - |
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| (noun) any hormone affecting the development and growth of sex organs | Synonyms: sex hormone, steroid hormone |
| steroidal | (adjective) of or relating to steroid hormones or their effects | - |
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| sterol | (noun) any of a group of natural steroid alcohols derived from plants or animals; they are waxy insoluble substances | Synonyms: steroid alcohol |
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| stertor | (noun) the act of snoring or producing a snoring sound | Synonyms: snore, snoring |
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| stertorous | (adjective) of breathing having a heavy snoring sound | - |
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| stertorously | (adverb) in a noisy and stertorous manner | - |
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| stilbesterol | (noun) synthetic nonsteroid with the properties of estrogen; formerly used to treat menstrual problems but was found to be associated with vaginal cancers in the daughters of women so treated during pregnancy | Synonyms: DES, diethylstilbesterol |
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| subsister | (noun) one who lives through affliction | Synonyms: survivor |
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| suggester | (noun) someone who advances a suggestion or proposal | Synonyms: proposer |
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| supertwister | (noun) the most powerful tornado which can create enormously devastating damage | - |
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| tapster | (noun) a tavern keeper who taps kegs or casks | Synonyms: tapper |
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| taskmaster | (noun) someone who imposes hard or continuous work | - |
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| taster | (noun) someone who samples food or drink for its quality | Synonyms: sampler, taste-tester, taste tester |
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| teamster | (noun) someone who drives a truck as an occupation | Synonyms: truck driver, trucker |
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| (noun) the driver of a team of horses doing hauling | - |
| telecaster | (noun) a television broadcaster | - |
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| tester | (noun) a flat canopy (especially one over a four-poster bed) | - |
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| (noun) someone who administers a test to determine your qualifications | Synonyms: examiner, quizzer |
| testosterone | (noun) a potent androgenic hormone produced chiefly by the testes; responsible for the development of male secondary sex characteristics | - |
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| thirster | (noun) a person with a strong desire for something | Synonyms: longer, yearner |
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| throwster | (noun) a person who twists silk or rayon filaments into a thread or yarn | Synonyms: thrower |
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| thruster | (noun) a small rocket engine that provides the thrust needed to maneuver a spacecraft | - |
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| (noun) one who intrudes or pushes himself forward | Synonyms: pusher |
| tipster | (noun) one who sells advice about gambling or speculation (especially at the racetrack) | Synonyms: tout |
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| toaster | (noun) a kitchen appliance (usually electric) for toasting bread | - |
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| (noun) someone who who drinks to the health of someone or the success of some venture | Synonyms: wassailer |
| toastmaster | (noun) the person who proposes toasts and introduces speakers at a banquet | Synonyms: symposiarch |
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| trainmaster | (noun) a railroad employer who is in charge of a railway yard | Synonyms: train dispatcher, yardmaster |
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| trickster | (noun) someone who plays practical jokes on others | Synonyms: cut-up, hoaxer, practical joker, prankster, tricker |
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| (noun) someone who leads you to believe something that is not true | Synonyms: beguiler, cheat, cheater, deceiver, slicker |
| (noun) a mischievous supernatural being found in the folklore of many primitive people; sometimes distinguished by prodigious biological drives and exaggerated bodily parts | - |
| trimester | (noun) a period of three months; especially one of the three three-month periods into which human pregnancy is divided | - |
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| (noun) one of three divisions of an academic year | - |
| trustbuster | (noun) a federal agent who engages in trust busting | - |
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| truster | (noun) a supporter who accepts something as true | Synonyms: believer |
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| twister | (noun) small friedcake formed into twisted strips and fried; richer than doughnuts | Synonyms: cruller |
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| (noun) a localized and violently destructive windstorm occurring over land characterized by a funnel-shaped cloud extending toward the ground | Synonyms: tornado |
| ulster | (noun) loose long overcoat of heavy fabric; usually belted | - |
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| unasterisked | (adjective) not marked with an asterisk | Synonyms: unstarred |
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| unflustered | (adjective) free from emotional agitation or nervous tension | Synonyms: unflurried, unperturbed, unruffled |
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| unregistered | (adjective) not registered | - |
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| (adjective) (of animals) not recorded with or certified by an official breed association | - |
| (adjective) (a boat or vessel) not furnished with official documents | - |
| unsterilised | (adjective) not sterilized | Synonyms: unsterilized |
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| unsterilized | (adjective) not sterilized | Synonyms: unsterilised |
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| upholster | (verb) provide furniture with padding, springs, webbing, and covers | - |
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| upholsterer | (noun) a craftsman who upholsters furniture | - |
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| upholstery | (noun) the craft of upholstering | - |
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| (noun) covering (padding and springs and webbing and fabric) on a piece of furniture | - |
| viosterol | (noun) a fat-soluble vitamin that prevents rickets | Synonyms: calciferol, cholecalciferol, D, ergocalciferol, vitamin D |
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| waldmeister | (noun) fragrant dark green leaves used to flavor May wine | Synonyms: sweet woodruff |
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| (noun) Old World fragrant stoloniferous perennial having small white flowers and narrow leaves used as flavoring and in sachets; widely cultivated as a ground cover; in some classifications placed in genus Asperula | Synonyms: Asperula odorata, fragrant bedstraw, Galium odoratum, sweet woodruff, woodruff |
| waster | (noun) someone who dissipates resources self-indulgently | Synonyms: wastrel |
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| (noun) a person who destroys or ruins or lays waste to | Synonyms: destroyer, ruiner, undoer, uprooter |
| webmaster | (noun) a technician who designs or maintains a website | - |
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| wester | (noun) wind that blows from west to east | Synonyms: west wind |
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| westerly | (adjective) of wind; from the west | Synonyms: western |
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| (adjective) moving toward the west | Synonyms: westbound, westward |
| (noun) the winds from the west that occur in the temperate zones of the Earth | Synonyms: prevailing westerly |
| (adverb) in a westward direction | - |
| (adverb) from the west | - |
| western | (adjective) relating to or characteristic of the western parts of the world or the West as opposed to the eastern or oriental parts | - |
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| (adjective) of or characteristic of regions of the United States west of the Mississippi River | - |
| (adjective) lying toward or situated in the west | - |
| (adjective) of wind; from the west | Synonyms: westerly |
| (noun) a sandwich made from a western omelet | Synonyms: western sandwich |
| westerner | (noun) an inhabitant of a western area; especially of the U.S. | - |
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| westernise | (verb) make western in character | Synonyms: occidentalise, occidentalize, westernize |
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| westernize | (verb) make western in character | Synonyms: occidentalise, occidentalize, westernise |
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| westernmost | (adjective) farthest to the west | Synonyms: westmost |
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| whoremaster | (noun) a pimp who procures whores | Synonyms: whoremonger |
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| (noun) a prostitute's customer | Synonyms: john, trick, whoremonger |
| wisteria | (noun) any flowering vine of the genus Wisteria | Synonyms: wistaria |
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| wrester | (noun) someone who obtains something by pulling it violently with twisting movements | - |
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| yardmaster | (noun) a railroad employer who is in charge of a railway yard | Synonyms: train dispatcher, trainmaster |
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| yesterday | (noun) the recent past | - |
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| (noun) the day immediately before today | - |
| (adverb) on the day preceding today | - |
| (adverb) in the recent past; only a short time ago | - |
| yesteryear | (noun) the time that has elapsed | Synonyms: past, past times |
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| youngster | (noun) a young person of either sex | Synonyms: child, fry, kid, minor, nestling, nipper, shaver, small fry, tiddler, tike, tyke |
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