| acupressure | (noun) treatment of symptoms by applying pressure with the fingers to specific pressure points on the body | Synonyms: G-Jo, shiatsu |
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| acupuncture | (noun) treatment of pain or disease by inserting the tips of needles at specific points on the skin | Synonyms: stylostixis |
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| acute | (noun) a mark placed above a vowel to indicate pronunciation | Synonyms: acute accent, ague |
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| acuteness | (noun) the quality of having a sharp edge or point | - |
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| (noun) a quick and penetrating intelligence | Synonyms: acuity, keenness, sharpness |
| (noun) a sensitivity that is keen and highly developed | - |
| addendum | (noun) textual matter that is added onto a publication; usually at the end | Synonyms: postscript, supplement |
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| adducer | (noun) a discussant who offers an example or a reason or a proof | - |
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| adducing | (noun) citing as evidence or proof | - |
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| adduct | (noun) a compound formed by an addition reaction | - |
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| adduction | (noun) (physiology) moving of a body part toward the central axis of the body | - |
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| adductor | (noun) a muscle that draws a body part toward the median line | Synonyms: adductor muscle |
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| adenovirus | (noun) any of a group of viruses including those that in humans cause upper respiratory infections or infectious pinkeye | - |
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| adequacy | (noun) the quality of being able to meet a need satisfactorily: | Synonyms: adequateness |
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| (noun) the quality of being sufficient for the end in view | Synonyms: sufficiency |
| adequateness | (noun) the quality of being able to meet a need satisfactorily: | Synonyms: adequacy |
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| adieu | (noun) a farewell remark | Synonyms: adios, arrivederci, au revoir, auf wiedersehen, bye-bye, bye, cheerio, good-by, good-bye, good day, goodby, goodbye, sayonara, so long |
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| adjournment | (noun) the termination of a meeting | Synonyms: dissolution |
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| (noun) the act of postponing to another time or place | - |
| adjudication | (noun) the final judgment in a legal proceeding; the act of pronouncing judgment based on the evidence presented | - |
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| adjudicator | (noun) a person who studies and settles conflicts and disputes | - |
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| adjunct | (noun) a construction that can be used to extend the meaning of a word or phrase but is not one of the main constituents of a sentence | - |
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| (noun) something added to another thing but not an essential part of it | - |
| (noun) a person who is an assistant or subordinate to another | - |
| adjunction | (noun) an act of joining or adjoining things | Synonyms: junction |
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| adjuration | (noun) a solemn and earnest appeal to someone to do something | - |
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| adjuster | (noun) one who investigates insurance claims or claims for damages and recommends an effective settlement | Synonyms: adjustor, claim agent, claims adjuster, claims adjustor |
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| adjustment | (noun) the act of making something different (as e.g. the size of a garment) | Synonyms: alteration, modification |
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| (noun) the act of adjusting something to match a standard | Synonyms: readjustment, registration |
| (noun) making or becoming suitable; adjusting to circumstances | Synonyms: accommodation, fitting |
| (noun) an amount added or deducted on the basis of qualifying circumstances | Synonyms: allowance |
| (noun) the process of adapting to something (such as environmental conditions) | Synonyms: adaptation, adaption |
| adjustor | (noun) one who investigates insurance claims or claims for damages and recommends an effective settlement | Synonyms: adjuster, claim agent, claims adjuster, claims adjustor |
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| adjutant | (noun) large Indian stork with a military gait | Synonyms: adjutant bird, adjutant stork, Leptoptilus dubius |
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| (noun) an officer who acts as military assistant to a more senior officer | Synonyms: aide-de-camp, aide |
| adjuvant | (noun) an additive that enhances the effectiveness of medical treatment | - |
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| admixture | (noun) the act of mixing together | Synonyms: commixture, intermixture, mix, mixing, mixture |
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| (noun) an additional ingredient that is added by mixing with the base | Synonyms: intermixture |
| (noun) the state of impairing the quality or reducing the value of something | Synonyms: alloy |
| adnoun | (noun) an adjective used as a noun | - |
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| adulation | (noun) servile flattery; exaggerated and hypocritical praise | - |
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| adulator | (noun) a person who uses flattery | Synonyms: flatterer |
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| adult | (noun) any mature animal | - |
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| (noun) a fully developed person from maturity onward | Synonyms: grownup |
| adulterant | (noun) any substance that lessens the purity or effectiveness of a substance | Synonyms: adulterator |
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| adulteration | (noun) the act of adulterating (especially the illicit substitution of one substance for another) | - |
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| (noun) being mixed with extraneous material; the product of adulterating | Synonyms: debasement |
| adulterator | (noun) a changer who lessens the purity or effectiveness of a substance | - |
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| (noun) any substance that lessens the purity or effectiveness of a substance | Synonyms: adulterant |
| adulterer | (noun) someone who commits adultery or fornication | Synonyms: fornicator |
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| adulteress | (noun) a woman adulterer | Synonyms: fornicatress, hussy, jade, loose woman, slut, strumpet, trollop |
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| adulterousness | (noun) The quality of being adulterous, involving sexual intercourse by a married person with someone other than their spouse. | - |
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| adultery | (noun) extramarital sex that willfully and maliciously interferes with marriage relations | Synonyms: criminal conversation, fornication |
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| adulthood | (noun) the state (and responsibilities) of a person who has attained maturity | - |
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| (noun) the period of time in your life after your physical growth has stopped and you are fully developed | Synonyms: maturity |
| adulting | (noun) acting like an adult | - |
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| adumbration | (noun) a sketchy or imperfect or faint representation | - |
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| (noun) the act of providing vague advance indications; representing beforehand | Synonyms: foreshadowing, prefiguration |
| advantageousness | (noun) the quality of being encouraging or promising of a successful outcome | Synonyms: favorableness, favourableness, positiveness, positivity, profitableness |
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| adventure | (noun) a wild and exciting undertaking (not necessarily lawful) | Synonyms: dangerous undertaking, escapade, risky venture |
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| adventurer | (noun) a person who enjoys taking risks | Synonyms: venturer |
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| (noun) someone who travels into little known regions (especially for some scientific purpose) | Synonyms: explorer |
| adventuress | (noun) a woman adventurer | - |
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| adventurism | (noun) recklessness in politics or foreign affairs | - |
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| adventurousness | (noun) the trait of being adventurous | Synonyms: venturesomeness |
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| aecium | (noun) fruiting body of some rust fungi bearing chains of aeciospores | - |
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| aeronaut | (noun) someone who operates an aircraft | Synonyms: aviator, flier, flyer |
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| aeronautics | (noun) the theory and practice of navigation through air or space | Synonyms: astronautics |
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| aeschynanthus | (noun) a plant of the genus Aeschynanthus having somewhat red or orange flowers and seeds having distinctive hairs at base and apex | - |
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| afflatus | (noun) a strong creative impulse; divine inspiration | - |
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| affluence | (noun) abundant wealth | Synonyms: richness |
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| affluent | (noun) a branch that flows into the main stream | Synonyms: confluent, feeder, tributary |
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| (noun) an affluent person; a person who is financially well off | - |
| affluenza | (noun) an inability to understand the consequences of one's actions because of financial privilege | - |
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| affusion | (noun) the act of baptizing someone by pouring water on their head | - |
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| afterburner | (noun) a device that injects fuel into a hot exhaust for extra thrust | - |
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| afterthought | (noun) an addition that was not included in the original plan | - |
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| (noun) thinking again about a choice previously made | Synonyms: reconsideration, rethink, second thought |
| agammaglobulinemia | (noun) a rare immunological disorder characterized by the virtual absence of gamma globulin in the blood and consequent susceptibility to infection | - |
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| agapanthus | (noun) any of various plants of the genus Agapanthus having umbels of showy blue to purple flowers | Synonyms: lily of the Nile |
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| agendum | (noun) a list of matters to be taken up (as at a meeting) | Synonyms: agenda, order of business |
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| ageratum | (noun) any plant of the genus Ageratum having opposite leaves and small heads of blue or white flowers | - |
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| (noun) rhizomatous plant of central and southeastern United States and West Indies having large showy heads of clear blue flowers; sometimes placed in genus Eupatorium | Synonyms: Conoclinium coelestinum, Eupatorium coelestinum, mist-flower, mistflower |
| agglutination | (noun) the building of words from component morphemes that retain their form and meaning in the process of combining | - |
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| (noun) a clumping of bacteria or red cells when held together by antibodies (agglutinins) | - |
| (noun) the coalescing of small particles that are suspended in solution; these larger masses are then (usually) precipitated | Synonyms: agglutinating activity |
| agglutinin | (noun) an antibody that causes agglutination of a specific antigen | - |
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| agglutinogen | (noun) any substance that acts as an antigen to cause agglutinin production | - |
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| agouti | (noun) agile long-legged rabbit-sized rodent of Central America and South America and the West Indies; valued as food | Synonyms: Dasyprocta aguti |
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| agranulocytosis | (noun) an acute blood disorder (often caused by radiation or drug therapy) characterized by severe reduction in granulocytes | Synonyms: agranulosis, granulocytopenia |
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| agranulosis | (noun) an acute blood disorder (often caused by radiation or drug therapy) characterized by severe reduction in granulocytes | Synonyms: agranulocytosis, granulocytopenia |
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| agribusiness | (noun) a large-scale farming enterprise | Synonyms: agriculture, factory farm |
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| agriculturalist | (noun) someone concerned with the science or art or business of cultivating the soil | Synonyms: agriculturist, cultivator, grower, raiser |
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| agriculture | (noun) the practice of cultivating the land or raising stock | Synonyms: farming, husbandry |
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| (noun) a large-scale farming enterprise | Synonyms: agribusiness, factory farm |
| (noun) the class of people engaged in growing food | - |
| agriculturist | (noun) someone concerned with the science or art or business of cultivating the soil | Synonyms: agriculturalist, cultivator, grower, raiser |
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| agua | (noun) largest known toad species; native to Central America; valuable destroyer of insect pests | Synonyms: agua toad, Bufo marinus |
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| aguacate | (noun) a pear-shaped tropical fruit with green or blackish skin and rich yellowish pulp enclosing a single large seed | Synonyms: alligator pear, avocado, avocado pear |
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| ague | (noun) a mark placed above a vowel to indicate pronunciation | Synonyms: acute, acute accent |
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| (noun) a fit of shivering or shaking | - |
| (noun) successive stages of chills and fever that is a symptom of malaria | Synonyms: chills and fever |
| agueweed | (noun) gentian of eastern North America having clusters of bristly blue flowers | Synonyms: ague weed, five-flowered gentian, Gentiana quinquefolia, Gentianella quinquefolia, stiff gentian |
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| (noun) perennial herb of southeastern United States having white-rayed flower heads; formerly used as in folk medicine | Synonyms: boneset, Eupatorium perfoliatum, thoroughwort |
| aiguillette | (noun) ornamental tagged cord or braid on the shoulder of a uniform | Synonyms: aglet, aiglet |
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| ailanthus | (noun) any of several deciduous Asian trees of the genus Ailanthus | - |
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| ailurophobia | (noun) a morbid fear of cats | - |
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| airbrush | (noun) an atomizer to spray paint by means of compressed air | - |
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| airburst | (noun) an explosion in the atmosphere | - |
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| airbus | (noun) a subsonic jet airliner operated over short distances | - |
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| airgun | (noun) a gun that propels a projectile by compressed air | Synonyms: air gun, air rifle |
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| alarum | (noun) an automatic signal (usually a sound) warning of danger | Synonyms: alarm, alert, warning signal |
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| albuca | (noun) any of various plants of the genus Albuca having large clusters of pale yellow flowers; South Africa | - |
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| albuginea | (noun) whitish tunic | - |
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| album | (noun) a book of blank pages with pockets or envelopes; for organizing photographs or stamp collections etc | - |
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| (noun) one or more recordings issued together; originally released on 12-inch phonograph records (usually with attractive record covers) and later on cassette audiotape and compact disc | Synonyms: record album |
| albumen | (noun) the white part of an egg; the nutritive and protective gelatinous substance surrounding the yolk consisting mainly of albumin dissolved in water | Synonyms: egg white, ovalbumin, white |
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| (noun) a simple water-soluble protein found in many animal tissues and liquids | Synonyms: albumin |
| albumin | (noun) a simple water-soluble protein found in many animal tissues and liquids | Synonyms: albumen |
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| albuminoid | (noun) a simple protein found in horny and cartilaginous tissues and in the lens of the eye | Synonyms: scleroprotein |
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| albuminuria | (noun) the presence of excessive protein (chiefly albumin but also globulin) in the urine; usually a symptom of kidney disorder | Synonyms: proteinuria |
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| albuterol | (noun) a bronchodilator (trade names Ventolin or Proventil) used for asthma and emphysema and other lung conditions; available in oral or inhalant forms; side effects are tachycardia and shakiness | Synonyms: Proventil, Ventolin |
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| alcaptonuria | (noun) a rare recessive metabolic anomaly marked by ochronosis and the presence of alkapton in the urine | Synonyms: alkaptonuria |
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| alehouse | (noun) a tavern where ale is sold | - |
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| aleurone | (noun) granular protein in outermost layer of endosperm of many seeds or cereal grains | - |
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| alhamdulilah | (noun) An expression meaning 'praise God' in Arabic | - |
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| aliquant | (noun) an integer that is not an exact divisor of some quantity | Synonyms: aliquant part |
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| aliquot | (noun) an integer that is an exact divisor of some quantity | Synonyms: aliquot part |
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| alkalinuria | (noun) a condition in which the urine (which is normally slightly acidic) is alkaline | Synonyms: alkaluria |
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| alkaluria | (noun) a condition in which the urine (which is normally slightly acidic) is alkaline | Synonyms: alkalinuria |
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| alkaptonuria | (noun) a rare recessive metabolic anomaly marked by ochronosis and the presence of alkapton in the urine | Synonyms: alcaptonuria |
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