| abashed | (adjective) feeling or caused to feel ill at ease or self-conscious or ashamed | Synonyms: chagrined, embarrassed |
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| abhenry | (noun) a unit of inductance equal to one billionth of a henry | - |
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| absinthe | (noun) strong green liqueur flavored with wormwood and anise | Synonyms: absinth |
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| (noun) aromatic herb of temperate Eurasia and North Africa having a bitter taste used in making the liqueur absinthe | Synonyms: Artemisia absinthium, common wormwood, lad's love, old man |
| acathexia | (noun) an inability to retain bodily secretions | - |
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| acathexis | (noun) (psychoanalysis) a lack of cathexis; a condition in which significant objects or memories arouse no emotion in an individual | - |
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| accomplished | (adjective) successfully completed or brought to an end | Synonyms: completed, realised, realized |
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| (adjective) settled securely and unconditionally | Synonyms: effected, established |
| (adjective) highly skilled | Synonyms: complete |
| 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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| accoucheur | (noun) a physician specializing in obstetrics | Synonyms: obstetrician |
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| accoucheuse | (noun) a woman skilled in aiding the delivery of babies | Synonyms: midwife |
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| acetaminophen | (noun) an analgesic for mild pain but not for inflammation; also used as an antipyretic; (Datril, Tylenol, Panadol, Phenaphen, Tempra, and Anacin III are trademarks of brands of acetaminophen tablets) | Synonyms: Anacin III, Datril, Panadol, Phenaphen, Tempra, Tylenol |
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| acetophenetidin | (noun) a white crystalline compound used as an analgesic and also as an antipyretic | Synonyms: acetphenetidin, phenacetin |
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| acetphenetidin | (noun) a white crystalline compound used as an analgesic and also as an antipyretic | Synonyms: acetophenetidin, phenacetin |
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| ache | (noun) a dull persistent (usually moderately intense) pain | Synonyms: aching |
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| (verb) have a desire for something or someone who is not present | Synonyms: languish, pine, yearn, yen |
| (verb) be the source of pain | Synonyms: hurt, smart |
| (verb) feel physical pain | Synonyms: hurt, suffer |
| achene | (noun) small dry indehiscent fruit with the seed distinct from the fruit wall | - |
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| achenial | (adjective) pertaining to dry one-seeded indehiscent fruit | - |
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| acroanaesthesia | (noun) loss of sensation in the extremities | Synonyms: acroanesthesia |
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| acroanesthesia | (noun) loss of sensation in the extremities | Synonyms: acroanaesthesia |
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| actinotherapy | (noun) (medicine) the treatment of disease (especially cancer) by exposure to a radioactive substance | Synonyms: irradiation, radiation, radiation therapy, radiotherapy |
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| addlehead | (noun) a person with confused ideas; incapable of serious thought | Synonyms: addle-head, birdbrain, loon |
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| adhere | (verb) follow through or carry out a plan without deviation | - |
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| (verb) stick to firmly | Synonyms: bind, bond, hold fast, stick, stick to |
| (verb) come or be in close contact with; stick or hold together and resist separation | Synonyms: cleave, cling, cohere, stick |
| (verb) be compatible or in accordance with | - |
| (verb) be loyal to | Synonyms: stand by, stick, stick by |
| (verb) be a devoted follower or supporter | Synonyms: stick |
| adherence | (noun) faithful support for a cause or political party or religion | Synonyms: adhesion, attachment |
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| (noun) the property of sticking together (as of glue and wood) or the joining of surfaces of different composition | Synonyms: adhesion, adhesiveness, bond |
| adherent | (adjective) sticking fast | - |
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| (noun) someone who believes and helps to spread the doctrine of another | Synonyms: disciple |
| adhesion | (noun) faithful support for a cause or political party or religion | Synonyms: adherence, attachment |
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| (noun) the property of sticking together (as of glue and wood) or the joining of surfaces of different composition | Synonyms: adherence, adhesiveness, bond |
| (noun) a fibrous band of scar tissue that binds together normally separate anatomical structures | - |
| (noun) abnormal union of bodily tissues; most common in the abdomen | - |
| adhesive | (adjective) tending to adhere | - |
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| (noun) a substance that unites or bonds surfaces together | Synonyms: adhesive agent, adhesive material |
| adhesiveness | (noun) the property of sticking together (as of glue and wood) or the joining of surfaces of different composition | Synonyms: adherence, adhesion, bond |
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| admonisher | (noun) someone who gives a warning so that a mistake can be avoided | Synonyms: monitor, reminder |
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| adrenarche | (noun) the increase in activity of the adrenal glands just before puberty | - |
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| aesthesia | (noun) mental responsiveness and awareness | Synonyms: esthesia, sensibility |
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| aesthesis | (noun) an unelaborated elementary awareness of stimulation | Synonyms: esthesis, sensation, sense datum, sense experience, sense impression |
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| aesthete | (noun) one who professes great sensitivity to the beauty of art and nature | Synonyms: esthete |
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| aesthetic | (adjective) concerning or characterized by an appreciation of beauty or good taste | Synonyms: aesthetical, esthetic, esthetical |
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| (adjective) relating to or dealing with the subject of aesthetics | Synonyms: esthetic |
| (adjective) aesthetically pleasing | Synonyms: artistic, esthetic |
| (noun) (philosophy) a philosophical theory as to what is beautiful | Synonyms: esthetic |
| aesthetical | (adjective) concerning or characterized by an appreciation of beauty or good taste | Synonyms: aesthetic, esthetic, esthetical |
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| aesthetically | (adverb) in a tasteful way | Synonyms: esthetically |
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| aesthetician | (noun) a philosopher who specializes in the nature of beauty | Synonyms: esthetician |
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| (noun) a worker skilled in giving beauty treatments (manicures and facials etc.) | Synonyms: esthetician |
| aesthetics | (noun) (art) the branch of philosophy dealing with beauty and taste (emphasizing the evaluative criteria that are applied to art) | Synonyms: esthetics |
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| aether | (noun) a medium that was once supposed to fill all space and to support the propagation of electromagnetic waves | Synonyms: ether |
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| affenpinscher | (noun) European breed of small dog resembling a terrier with dark wiry hair and a tufted muzzle | Synonyms: monkey dog, monkey pinscher |
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| ahead | (adjective) having the leading position or higher score in a contest | Synonyms: in the lead, leading |
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| (adverb) at or in the front | Synonyms: before, in front |
| (adverb) ahead of time; in anticipation | Synonyms: beforehand, in advance |
| (adverb) in a forward direction | Synonyms: forrader, forward, forwards, onward, onwards |
| (adverb) leading or ahead in a competition | Synonyms: in the lead, out front |
| (adverb) to a different or a more advanced time (meaning advanced either toward the present or toward the future) | - |
| (adverb) to a more advanced or advantageous position | - |
| (adverb) toward the future; forward in time | Synonyms: forward |
| 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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| airhead | (noun) a bridgehead seized by airborne troops | - |
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| (noun) a flighty scatterbrained simpleton | - |
| airheaded | (adjective) lacking seriousness; given to frivolity | Synonyms: dizzy, empty-headed, featherbrained, giddy, light-headed, lightheaded, silly |
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| alcahest | (noun) hypothetical universal solvent once sought by alchemists | Synonyms: alkahest, universal solvent |
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| alchemic | (adjective) related to or concerned with alchemy | Synonyms: alchemical |
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| alchemical | (adjective) related to or concerned with alchemy | Synonyms: alchemic |
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| alchemise | (verb) alter (elements) by alchemy | Synonyms: alchemize |
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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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| alchemistic | (adjective) of or relating to alchemists | Synonyms: alchemistical |
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| alchemistical | (adjective) of or relating to alchemists | Synonyms: alchemistic |
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| alchemize | (verb) alter (elements) by alchemy | Synonyms: alchemise |
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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 |
| aldohexose | (noun) a monosaccharide sugar having six carbon atoms and an aldehyde group | - |
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| alkahest | (noun) hypothetical universal solvent once sought by alchemists | Synonyms: alcahest, universal solvent |
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| alkahestic | (adjective) of or pertaining to the alkahest that alchemists assumed to exist | - |
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| althea | (noun) any of various plants of the genus Althaea; similar to but having smaller flowers than genus Alcea | Synonyms: althaea, hollyhock |
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| altogether | (noun) informal terms for nakedness | Synonyms: birthday suit, raw |
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| (adverb) with everything included or counted | Synonyms: all told, in all |
| (adverb) with everything considered (and neglecting details) | Synonyms: all in all, on the whole, tout ensemble |
| (adverb) to a complete degree or to the full or entire extent; Completely or entirely | Synonyms: all, completely, entirely, right, totally, whole, wholly |
| ambusher | (noun) an attacker who waits in a concealed position to launch a surprise attack | - |
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| amenorrhea | (noun) absence or suppression of normal menstrual flow | Synonyms: amenia, amenorrhoea |
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| amenorrheal | (adjective) related to the suppression of normal menstrual flow for any reason other than pregnancy | Synonyms: amenorrheic, amenorrhoeal, amenorrhoeic |
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| amenorrheic | (adjective) related to the suppression of normal menstrual flow for any reason other than pregnancy | Synonyms: amenorrheal, amenorrhoeal, amenorrhoeic |
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| aminopherase | (noun) a class of transferases that catalyze transamination (that transfer an amino group from an amino acid to another compound) | Synonyms: aminotransferase, transaminase |
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| amphetamine | (noun) a central nervous system stimulant that increases energy and decreases appetite; used to treat narcolepsy and some forms of depression | Synonyms: pep pill, speed, upper |
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| amphitheater | (noun) an oval large stadium with tiers of seats; an arena in which contests and spectacles are held | Synonyms: amphitheatre, coliseum |
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| (noun) a sloping gallery with seats for spectators (as in an operating room or theater) | Synonyms: amphitheatre |
| amphitheatre | (noun) an oval large stadium with tiers of seats; an arena in which contests and spectacles are held | Synonyms: amphitheater, coliseum |
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| (noun) a sloping gallery with seats for spectators (as in an operating room or theater) | Synonyms: amphitheater |
| amphitheatric | (adjective) of or related to an amphitheater | Synonyms: amphitheatrical |
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| amphitheatrical | (adjective) of or related to an amphitheater | Synonyms: amphitheatric |
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| anaesthesia | (noun) loss of bodily sensation with or without loss of consciousness | Synonyms: anesthesia |
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| anaesthetic | (adjective) relating to or producing insensibility | Synonyms: anesthetic |
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| (adjective) characterized by insensibility | Synonyms: anesthetic |
| (noun) a drug that causes temporary loss of bodily sensations | Synonyms: anaesthetic agent, anesthetic, anesthetic agent |
| anaesthetise | (verb) administer an anesthetic drug to | Synonyms: anaesthetize, anesthetise, anesthetize, put out, put under |
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| anaesthetist | (noun) a specialist who administers an anesthetic to a patient before he is treated | Synonyms: anesthesiologist, anesthetist |
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| anaesthetize | (verb) administer an anesthetic drug to | Synonyms: anaesthetise, anesthetise, anesthetize, put out, put under |
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| anastrophe | (noun) the reversal of the normal order of words | Synonyms: inversion |
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| 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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| anathematise | (verb) curse or declare to be evil or anathema or threaten with divine punishment | Synonyms: accurse, anathematize, anathemise, anathemize, comminate, execrate |
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| anathematization | (noun) the formal act of pronouncing (someone or something) accursed | Synonyms: anathematisation |
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| anathematize | (verb) curse or declare to be evil or anathema or threaten with divine punishment | Synonyms: accurse, anathematise, anathemise, anathemize, comminate, execrate |
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| anathemise | (verb) curse or declare to be evil or anathema or threaten with divine punishment | Synonyms: accurse, anathematise, anathematize, anathemize, comminate, execrate |
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| (verb) wish harm upon; invoke evil upon | Synonyms: anathemize, bedamn, beshrew, curse, damn, imprecate, maledict |
| anathemize | (verb) wish harm upon; invoke evil upon | Synonyms: anathemise, bedamn, beshrew, curse, damn, imprecate, maledict |
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| (verb) curse or declare to be evil or anathema or threaten with divine punishment | Synonyms: accurse, anathematise, anathematize, anathemise, comminate, execrate |
| anesthesia | (noun) loss of bodily sensation with or without loss of consciousness | Synonyms: anaesthesia |
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| anesthesiologist | (noun) a specialist who administers an anesthetic to a patient before he is treated | Synonyms: anaesthetist, anesthetist |
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| anesthesiology | (noun) the branch of medical science that studies and applies anesthetics | - |
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| anesthetic | (adjective) relating to or producing insensibility | Synonyms: anaesthetic |
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| (adjective) characterized by insensibility | Synonyms: anaesthetic |
| (noun) a drug that causes temporary loss of bodily sensations | Synonyms: anaesthetic, anaesthetic agent, anesthetic agent |
| anesthetise | (verb) administer an anesthetic drug to | Synonyms: anaesthetise, anaesthetize, anesthetize, put out, put under |
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| anesthetist | (noun) a specialist who administers an anesthetic to a patient before he is treated | Synonyms: anaesthetist, anesthesiologist |
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| anesthetize | (verb) administer an anesthetic drug to | Synonyms: anaesthetise, anaesthetize, anesthetise, put out, put under |
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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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| anguished | (adjective) experiencing intense pain especially mental pain | Synonyms: tormented, tortured |
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| anhedonia | (noun) an inability to experience pleasure | - |
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| anopheline | (adjective) relating to or characteristic of malaria mosquitoes | - |
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| (noun) any mosquito of the genus Anopheles | - |
| another | (adjective) any of various alternatives; some other; entity, singular, other pronoun; quantifier, singular, another | Synonyms: some other |
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| anthelminthic | (adjective) capable of expelling or destroying parasitic worms | Synonyms: anthelmintic, helminthic, parasiticidal |
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| (noun) a medication capable of causing the evacuation of parasitic intestinal worms | Synonyms: anthelmintic, helminthic, vermifuge |
| anthelmintic | (adjective) capable of expelling or destroying parasitic worms | Synonyms: anthelminthic, helminthic, parasiticidal |
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| (noun) a medication capable of causing the evacuation of parasitic intestinal worms | Synonyms: anthelminthic, helminthic, vermifuge |
| 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) | - |
| anther | (noun) the part of the stamen that contains pollen; usually borne on a stalk | - |
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| antheral | (adjective) capable of fertilizing female organs | Synonyms: staminate |
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| antheridial | (adjective) relating to or characterized by an antheridium | - |
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| antheridiophore | (noun) gametophore bearing antheridia as in certain mosses and liverworts | - |
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| antheridium | (noun) the male sex organ of spore-producing plants; produces antherozoids; equivalent to the anther in flowers | - |
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| antherozoid | (noun) a motile male gamete of a plant such as an alga or fern or gymnosperm | Synonyms: spermatozoid |
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| anthesis | (noun) the time and process of budding and unfolding of blossoms | Synonyms: blossoming, efflorescence, florescence, flowering, inflorescence |
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