| hematin | (noun) a complex red organic pigment containing iron and other atoms to which oxygen binds | Synonyms: haem, haemitin, heme, protoheme |
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| hematinic | (noun) a medicine that increases the hemoglobin content of the blood; used to treat iron-deficiency anemia | Synonyms: haematinic |
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| hematite | (noun) the principal form of iron ore; consists of ferric oxide in crystalline form; occurs in a red earthy form | Synonyms: haematite |
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| hematocele | (noun) swelling caused by blood collecting in a body cavity (especially a swelling of the membrane covering the testis) | Synonyms: haematocele, haematocoele, hematocoele |
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| hematochezia | (noun) passage of stools containing blood (as from diverticulosis or colon cancer or peptic ulcer) | Synonyms: haematochezia |
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| hematochrome | (noun) a reddish coloring material found in some algae | - |
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| hematocoele | (noun) swelling caused by blood collecting in a body cavity (especially a swelling of the membrane covering the testis) | Synonyms: haematocele, haematocoele, hematocele |
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| hematocolpometra | (noun) accumulation of blood in the vagina and uterus | Synonyms: haematocolpometra |
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| hematocolpos | (noun) accumulation of menstrual blood in the vagina (usually due to an imperforate hymen) | Synonyms: haematocolpos |
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| hematocrit | (noun) a measuring instrument to determine (usually by centrifugation) the relative amounts of corpuscles and plasma in the blood | Synonyms: haematocrit |
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| (noun) the ratio of the volume occupied by packed red blood cells to the volume of the whole blood as measured by a hematocrit | Synonyms: haematocrit, packed cell volume |
| hematocyst | (noun) a cyst containing blood | Synonyms: blood cyst, hemorrhagic cyst |
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| hematocytopenia | (noun) an abnormally low number of red blood cells in the blood | Synonyms: haematocytopenia |
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| hematocyturia | (noun) the presence of red blood cells in the urine | Synonyms: haematocyturia |
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| hematogenesis | (noun) the formation of blood cells in the living body (especially in the bone marrow) | Synonyms: haematogenesis, haematopoiesis, haemogenesis, haemopoiesis, hematopoiesis, hemogenesis, hemopoiesis, sanguification |
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| hematohiston | (noun) a colorless protein obtained by removing heme from hemoglobin; the oxygen carrying compound in red blood cells | Synonyms: globin, haematohiston |
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| hematoidin | (noun) an orange-yellow pigment in the bile that forms as a product of hemoglobin; excess amounts in the blood produce the yellow appearance observed in jaundice | Synonyms: bilirubin, haematoidin |
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| hematologist | (noun) a doctor who specializes in diseases of the blood and blood-forming organs | Synonyms: haematologist |
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| hematology | (noun) the branch of medicine that deals with diseases of the blood and blood-forming organs | Synonyms: haematology |
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| hematolysis | (noun) lysis of erythrocytes with the release of hemoglobin | Synonyms: haematolysis, haemolysis, hemolysis |
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| hematoma | (noun) a localized swelling filled with blood | Synonyms: haematoma |
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| hematopoiesis | (noun) the formation of blood cells in the living body (especially in the bone marrow) | Synonyms: haematogenesis, haematopoiesis, haemogenesis, haemopoiesis, hematogenesis, hemogenesis, hemopoiesis, sanguification |
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| hematuria | (noun) the presence of blood in the urine; often a symptom of urinary tract disease | Synonyms: haematuria |
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| homemaker | (noun) a wife who manages a household while her husband earns the family income | Synonyms: housewife, lady of the house, woman of the house |
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| homemaking | (noun) the management of a household | - |
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| horseman | (noun) a person who breeds and cares for horses | Synonyms: horse fancier |
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| (noun) a man skilled in equitation | - |
| horsemanship | (noun) skill in handling and riding horses | - |
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| housemaid | (noun) a female domestic | Synonyms: amah, maid, maidservant |
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| houseman | (noun) an advanced student or graduate in medicine gaining supervised practical experience | Synonyms: intern, interne, medical intern |
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| housemaster | (noun) teacher in charge of a school boardinghouse | - |
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| housemate | (noun) someone who resides in the same house with you | - |
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| hyphema | (noun) bleeding into the interior chamber of the eye | - |
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| iceman | (noun) someone who cuts and delivers ice | - |
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| (noun) a professional killer | Synonyms: hatchet man |
| kinematics | (noun) the branch of mechanics concerned with motion without reference to force or mass | - |
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| ledgeman | (noun) a quarry worker who splits off blocks of stone | Synonyms: breaker |
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| legerdemain | (noun) an illusory feat; considered magical by naive observers | Synonyms: conjuration, conjuring trick, deception, illusion, magic, magic trick, thaumaturgy, trick |
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| lemanderin | (noun) hybrid between mandarin orange and lemon having very acid fruit with orange peel | Synonyms: Citrus limonia, rangpur, rangpur lime |
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| liegeman | (noun) a person holding a fief; a person who owes allegiance and service to a feudal lord | Synonyms: feudatory, liege, liege subject, vassal |
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| lineman | (noun) (American football) the position of a player on a football team who is stationed on the line of scrimmage | - |
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| (noun) one of the players on the line of scrimmage | - |
| (noun) a person who installs or repairs electrical or telephone lines | Synonyms: electrician, linesman |
| (noun) the surveyor who marks positions with a range pole | - |
| longshoreman | (noun) a laborer who loads and unloads vessels in a port | Synonyms: dock-walloper, dock worker, docker, dockhand, dockworker, loader, lumper, stevedore |
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| lovemaking | (noun) sexual activities (often including sexual intercourse) between two people | Synonyms: love, love life, making love, sexual love |
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| lymphedema | (noun) swelling (usually in the legs) caused by lymph accumulating in the tissues in the affected areas | - |
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| mathematician | (noun) a person skilled in mathematics | - |
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| mathematics | (noun) a science (or group of related sciences) dealing with the logic of quantity and shape and arrangement | Synonyms: math, maths |
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| metamathematics | (noun) the logical analysis of mathematical reasoning | - |
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| middleman | (noun) a person who is in a position to give you special assistance | Synonyms: contact |
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| (noun) someone who buys large quantities of goods and resells to merchants rather than to the ultimate customers | Synonyms: jobber, wholesaler |
| (noun) the performer in the middle of a minstrel line who engages the others in talk | Synonyms: interlocutor |
| moviemaking | (noun) the production of movies | Synonyms: film making, movie making |
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| muscleman | (noun) a bully employed as a thug or bodyguard | Synonyms: muscle |
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| (noun) someone who does special exercises to develop a brawny musculature | Synonyms: bodybuilder, muscle-builder, muscle builder, musclebuilder |
| myxedema | (noun) hypothyroidism marked by dry skin and swellings around lips and nose as well as mental deterioration | Synonyms: myxoedema |
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| myxoedema | (noun) hypothyroidism marked by dry skin and swellings around lips and nose as well as mental deterioration | Synonyms: myxedema |
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| nematode | (noun) unsegmented worms with elongated rounded body pointed at both ends; mostly free-living but some are parasitic | Synonyms: nematode worm, roundworm |
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| nobleman | (noun) a titled peer of the realm | Synonyms: Lord, noble |
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| noisemaker | (noun) a device (such as a clapper or bell or horn) used to make a loud noise at a celebration | - |
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| nursemaid | (noun) a woman who is the custodian of children | Synonyms: nanny, nurse |
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| oedema | (noun) swelling from excessive accumulation of watery fluid in cells, tissues, or serous cavities | Synonyms: dropsy, edema, hydrops |
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| pacemaker | (noun) a horse used to set the pace in racing | Synonyms: pacer, pacesetter |
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| (noun) an implanted electronic device that takes over the function of the natural cardiac pacemaker | Synonyms: artificial pacemaker |
| (noun) a specialized bit of heart tissue that controls the heartbeat | Synonyms: cardiac pacemaker, SA node, sinoatrial node |
| (noun) a leading instance in its field | Synonyms: pacesetter |
| papilledema | (noun) swelling of the optic disc (where the optic nerve enters the eyeball); usually associated with an increase in intraocular pressure | - |
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| peacemaker | (noun) someone who tries to bring peace | Synonyms: conciliator, make-peace, pacifier, reconciler |
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| placeman | (noun) a disparaging term for an appointee | Synonyms: placeseeker |
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| policeman | (noun) a male member of a police force | - |
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| polysemant | (noun) a word having more than one meaning | Synonyms: polysemantic word, polysemous word |
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| posseman | (noun) an able-bodied man serving as a member of a posse | - |
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| prematureness | (noun) the state of being premature | Synonyms: prematurity |
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| prematurity | (noun) the state of being premature | Synonyms: prematureness |
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| problematics | (noun) the uncertainties or difficulties inherent in a situation or plan. | - |
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| remainder | (noun) a piece of cloth that is left over after the rest has been used or sold | Synonyms: end, oddment, remnant |
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| (noun) the number that remains after subtraction; the number that when added to the subtrahend gives the minuend | Synonyms: difference |
| (noun) the part of the dividend that is left over when the dividend is not evenly divisible by the divisor | - |
| (noun) something left after other parts have been taken away | Synonyms: balance, residual, residue, residuum, rest |
| remains | (noun) the dead body of a human being | Synonyms: cadaver, clay, corpse, stiff |
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| (noun) any object that is left unused or still extant | - |
| (noun) a relic that has been excavated from the soil | Synonyms: archeological remains |
| remake | (noun) creation that is created again or anew | Synonyms: remaking |
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| remaking | (noun) creation that is created again or anew | Synonyms: remake |
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| remand | (noun) the act of sending an accused person back into custody to await trial (or the continuation of the trial) | - |
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| remark | (noun) explicit notice | - |
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| (noun) a statement that expresses a personal opinion or belief or adds information | Synonyms: comment, input |
| remarriage | (noun) the act of marrying again | - |
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| rematch | (noun) something (especially a game) that is played again | Synonyms: replay |
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| rifleman | (noun) a soldier whose weapon is a rifle | - |
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| (noun) someone skilled in the use of a rifle | - |
| ropemaker | (noun) a craftsman who makes ropes | Synonyms: rope-maker, roper |
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| rosemaling | (noun) a Scandinavian style of carved or painted decoration (as on furniture or walls or dinnerware) consisting of floral motifs | - |
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| rosemary | (noun) extremely pungent leaves used fresh or dried as seasoning for especially meats | - |
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| (noun) widely cultivated for its fragrant grey-green leaves used in cooking and in perfumery | Synonyms: Rosmarinus officinalis |
| routemarch | (noun) a long training march for troops | - |
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| schema | (noun) a schematic or preliminary plan | Synonyms: outline, scheme |
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| (noun) an internal representation of the world; an organization of concepts and actions that can be revised by new information about the world | Synonyms: scheme |
| schematic | (noun) diagram of an electrical or mechanical system | Synonyms: schematic drawing |
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| schematisation | (noun) providing a chart or outline of a system | Synonyms: diagramming, schematization |
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| (noun) the act of reducing to a scheme or formula | Synonyms: schematization |
| schematization | (noun) providing a chart or outline of a system | Synonyms: diagramming, schematisation |
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| (noun) the act of reducing to a scheme or formula | Synonyms: schematisation |
| scleredema | (noun) a skin disease marked by hard edema of the tissue usually beginning in the face | - |
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| semanticist | (noun) a specialist in the study of meaning | Synonyms: semiotician |
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| semantics | (noun) the study of language meaning | - |
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| (noun) the meaning of a word, phrase, sentence, or text | - |
| semaphore | (noun) an apparatus for visual signaling with lights or mechanically moving arms | - |
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| semasiology | (noun) the branch of semantics that studies the cognitive aspects of meaning | Synonyms: cognitive semantics, conceptual semantics |
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| seriema | (noun) Brazilian Cariama; sole representative of the genus Cariama | Synonyms: Cariama cristata, crested cariama |
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| (noun) Argentinian Cariama | Synonyms: chunga, Chunga burmeisteri |
| serviceman | (noun) someone who serves in the armed forces; a member of a military force | Synonyms: man, military man, military personnel |
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| shoemaker | (noun) a person who makes or repairs shoes | Synonyms: cobbler |
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| shoemaking | (noun) the shoemaker's trade | Synonyms: cobbling, shoe repairing |
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| spaceman | (noun) a person trained to travel in a spacecraft | Synonyms: astronaut, cosmonaut |
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| stableman | (noun) someone employed in a stable to take care of the horses | Synonyms: groom, hostler, ostler, stableboy |
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| stablemate | (noun) a horse stabled with another or one of several horses owned by the same person | Synonyms: stable companion |
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| stalemate | (noun) drawing position in chess: any of a player's possible moves would place his king in check | - |
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| (noun) a situation in which no progress can be made or no advancement is possible | Synonyms: dead end, deadlock, impasse, standstill |
| stonemason | (noun) a craftsman who works with stone or brick | Synonyms: mason |
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| stylemark | (noun) a distinctive characteristic or attribute of someone or something | Synonyms: earmark, hallmark, trademark |
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| supremacism | (noun) the belief that some particular group or race is superior to all others | - |
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| supremacist | (noun) a person who advocates the supremacy of some particular group or racial group over all others | - |
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| supremacy | (noun) power to dominate or defeat | Synonyms: domination, mastery |
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| suprematism | (noun) a geometric abstractionist movement originated by Kazimir Malevich in Russia that influenced constructivism | - |
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