| accouchement | (noun) the parturition process in human beings; having a baby; the process of giving birth to a child | Synonyms: childbearing, childbirth, vaginal birth |
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| ahem | (noun) the utterance of a sound similar to clearing the throat; intended to get attention, express hesitancy, fill a pause, hide embarrassment, warn a friend, etc. | Synonyms: hem |
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| alchemist | (noun) one who was versed in the practice of alchemy and who sought an elixir of life and a panacea and an alkahest and the philosopher's stone | - |
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| alchemy | (noun) a pseudoscientific forerunner of chemistry in medieval times | - |
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| (noun) the way two individuals relate to each other | Synonyms: chemistry, interpersonal chemistry |
| anathema | (noun) a formal ecclesiastical curse accompanied by excommunication | - |
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| (noun) a detested person | Synonyms: bete noire |
| anathematisation | (noun) the formal act of pronouncing (someone or something) accursed | Synonyms: anathematization |
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| anathematization | (noun) the formal act of pronouncing (someone or something) accursed | Synonyms: anathematisation |
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| angiohemophilia | (noun) a form of hemophilia discovered by Erik von Willebrand; a genetic disorder that is inherited as an autosomal recessive trait; characterized by a deficiency of the coagulation factor and by mucosal bleeding | Synonyms: vascular hemophilia, von Willebrand's disease |
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| anthem | (noun) a song of praise (to God or to a saint or to a nation) | Synonyms: hymn |
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| (noun) a song of devotion or loyalty (as to a nation or school) | - |
| behemoth | (noun) someone that is abnormally large and powerful | Synonyms: colossus, giant, goliath, monster |
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| (noun) a person of exceptional importance and reputation | Synonyms: colossus, giant, heavyweight, titan |
| biochemist | (noun) someone with special training in biochemistry | - |
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| biochemistry | (noun) the organic chemistry of compounds and processes occurring in organisms; the effort to understand biology within the context of chemistry | - |
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| blasphemer | (noun) a person who speaks disrespectfully of sacred things | - |
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| blasphemy | (noun) blasphemous behavior; the act of depriving something of its sacred character | Synonyms: desecration, profanation, sacrilege |
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| (noun) blasphemous language (expressing disrespect for God or for something sacred) | - |
| bohemia | (noun) a group of artists and writers with real or pretended artistic or intellectual aspirations and usually an unconventional life style | - |
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| bohemian | (noun) a nonconformist writer or artist who lives an unconventional life | - |
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| bohemianism | (noun) conduct characteristic of a bohemian | - |
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| cephalhematoma | (noun) a collection of blood under the scalp of a newborn; caused by pressure during birth | Synonyms: cephalohematoma |
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| cephalohematoma | (noun) a collection of blood under the scalp of a newborn; caused by pressure during birth | Synonyms: cephalhematoma |
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| chemical | (noun) material produced by or used in a reaction involving changes in atoms or molecules | Synonyms: chemical substance |
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| chemiluminescence | (noun) luminescence resulting from a chemical reaction as the oxidation of luciferin in fireflies | - |
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| chemise | (noun) a loose-fitting dress hanging straight from the shoulders without a waist | Synonyms: sack, shift |
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| (noun) a woman's sleeveless undergarment | Synonyms: shift, shimmy, slip, teddy |
| chemisorption | (noun) adsorption (especially when irreversible) by means of chemical instead of physical forces | Synonyms: chemosorption |
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| chemist | (noun) a scientist who specializes in chemistry | - |
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| (noun) a health professional trained in the art of preparing and dispensing drugs | Synonyms: apothecary, druggist, pharmacist, pill pusher, pill roller |
| chemistry | (noun) the science of matter; the branch of the natural sciences dealing with the composition of substances and their properties and reactions | Synonyms: chemical science |
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| (noun) the way two individuals relate to each other | Synonyms: alchemy, interpersonal chemistry |
| (noun) the chemical composition and properties of a substance or object | - |
| chemoattractant | (noun) a substance inducing positive chemotaxis in motile cells. | - |
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| chemoautotroph | (noun) An organism that depends on chemicals for its energy and principally on carbon dioxide for its carbon. | Synonyms: chemotrophic autotroph |
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| chemoimmunology | (noun) the field of chemistry concerned with chemical processes in immunology (such as chemical studies of antigens and antibodies) | Synonyms: immunochemistry |
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| chemoreceptor | (noun) a sensory receptor that responds to chemical stimuli | - |
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| chemosis | (noun) edema of the mucous membrane of the eyeball and eyelid lining | - |
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| chemosorption | (noun) adsorption (especially when irreversible) by means of chemical instead of physical forces | Synonyms: chemisorption |
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| chemosurgery | (noun) use of chemical to destroy diseased or malignant tissue; used in treatment of skin cancer | - |
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| chemosynthesis | (noun) synthesis of carbohydrate from carbon dioxide and water; limited to certain bacteria and fungi | - |
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| chemotaxis | (noun) movement by a cell or organism in reaction to a chemical stimulus | - |
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| chemotherapy | (noun) the use of chemical agents to treat or control disease (or mental illness) | - |
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| chrysanthemum | (noun) any of numerous perennial Old World herbs having showy brightly colored flower heads of the genera Chrysanthemum, Argyranthemum, Dendranthema, Tanacetum; widely cultivated | - |
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| (noun) the flower of a chrysanthemum plant | - |
| dysphemism | (noun) an offensive or disparaging expression that is substituted for an inoffensive one | - |
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| electrochemistry | (noun) branch of chemistry that deals with the chemical action of electricity and the production of electricity by chemical reactions | - |
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| enanthem | (noun) eruption on a mucous membrane (as the inside of the mouth) occurring as a symptom of a disease | Synonyms: enanthema |
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| enanthema | (noun) eruption on a mucous membrane (as the inside of the mouth) occurring as a symptom of a disease | Synonyms: enanthem |
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| ephemera | (noun) something transitory; lasting a day | - |
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| ephemeral | (noun) anything short-lived, as an insect that lives only for a day in its winged form | Synonyms: ephemeron |
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| ephemerality | (noun) the property of lasting for a very short time | Synonyms: ephemeralness, fleetingness |
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| ephemeralness | (noun) the property of lasting for a very short time | Synonyms: ephemerality, fleetingness |
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| ephemerid | (noun) short-lived insect | Synonyms: ephemeropteran |
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| ephemeris | (noun) an annual publication containing astronomical tables that give the positions of the celestial bodies throughout the year | - |
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| ephemeron | (noun) anything short-lived, as an insect that lives only for a day in its winged form | Synonyms: ephemeral |
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| ephemeropteran | (noun) short-lived insect | Synonyms: ephemerid |
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| erythema | (noun) abnormal redness of the skin resulting from dilation of blood vessels (as in sunburn or inflammation) | - |
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| euphemism | (noun) an inoffensive or indirect expression that is substituted for one that is considered offensive or too harsh | - |
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| exanthem | (noun) eruption on the skin occurring as a symptom of a disease | Synonyms: exanthema, skin eruption |
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| exanthema | (noun) eruption on the skin occurring as a symptom of a disease | Synonyms: exanthem, skin eruption |
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| femtochemistry | (noun) the branch of chemistry that studies elementary (often very fast) chemical reactions as they occur; the experimental methods are often based on the use of femtosecond laser pulses | - |
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| geochemistry | (noun) the chemistry of the earth's crust | - |
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| grapheme | (noun) a written symbol that is used to represent speech | Synonyms: character, graph, graphic symbol |
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| helianthemum | (noun) any plant of the genus Helianthemum; vigorous plants of stony alpine meadows and dry scrub regions | Synonyms: sun rose, sunrose |
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| hem | (noun) the edge of a piece of cloth; especially the finished edge that has been doubled under and stitched down | - |
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| (noun) the utterance of a sound similar to clearing the throat; intended to get attention, express hesitancy, fill a pause, hide embarrassment, warn a friend, etc. | Synonyms: ahem |
| hemagglutination | (noun) agglutination of red blood cells | Synonyms: haemagglutination |
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| hemangioma | (noun) benign angioma consisting of a mass of blood vessels; some appear as birthmarks | Synonyms: haemangioma |
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| hematemesis | (noun) vomiting blood | Synonyms: haematemesis |
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| 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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| heme | (noun) a complex red organic pigment containing iron and other atoms to which oxygen binds | Synonyms: haem, haemitin, hematin, protoheme |
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| hemeralopia | (noun) inability to see clearly in bright light | Synonyms: day blindness |
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| hemerobiid | (noun) small dark-colored lacewing fly | Synonyms: brown lacewing, hemerobiid fly |
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| hemiacetal | (noun) an organic compound usually formed as an intermediate product in the preparation of acetals from aldehydes or ketones | - |
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| hemianopia | (noun) blindness in one half of the visual field of one or both eyes | Synonyms: hemianopsia |
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| hemianopsia | (noun) blindness in one half of the visual field of one or both eyes | Synonyms: hemianopia |
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| hemicrania | (noun) a severe recurring vascular headache; occurs more frequently in women than men | Synonyms: megrim, migraine, sick headache |
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| hemicycle | (noun) a plane figure with the shape of half a circle | Synonyms: semicircle |
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| hemidemisemiquaver | (noun) a musical note having the time value of a sixty-fourth of a whole note | Synonyms: sixty-fourth note |
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| hemidrachm | (noun) an ancient Greek silver coin equal to 1/2 drachm or 3 obols in value. | - |
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| hemiepiphyte | (noun) a plant that is an epiphyte for part of its life | Synonyms: semiepiphyte |
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| hemimetabolism | (noun) incomplete or partial metamorphosis in insects | Synonyms: hemimetaboly, hemimetamorphosis |
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| hemimetaboly | (noun) incomplete or partial metamorphosis in insects | Synonyms: hemimetabolism, hemimetamorphosis |
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| hemimetamorphosis | (noun) incomplete or partial metamorphosis in insects | Synonyms: hemimetabolism, hemimetaboly |
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| hemimorphite | (noun) a white mineral; a common ore of zinc | Synonyms: calamine |
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| hemin | (noun) a reddish-brown chloride of heme; produced from hemoglobin in laboratory tests for the presence of blood | Synonyms: protohemin |
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| hemiparasite | (noun) a parasitic plant that contains some chlorophyll and therefore is capable of photosynthesis | Synonyms: semiparasite |
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| hemiplegia | (noun) paralysis of one side of the body | Synonyms: unilateral paralysis |
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