| aborticide | (noun) the act of destroying a fetus | Synonyms: feticide |
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| (noun) a drug (or other chemical agent) that causes abortion | Synonyms: abortifacient, abortion-inducing drug |
| acaracide | (noun) a chemical agent used to kill mites | Synonyms: acaricide |
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| acaricide | (noun) a chemical agent used to kill mites | Synonyms: acaracide |
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| accidence | (noun) the part of grammar that deals with the inflections of words | Synonyms: inflectional morphology |
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| accident | (noun) anything that happens suddenly or by chance without an apparent cause | Synonyms: chance event, fortuity, stroke |
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| (noun) an unfortunate mishap; especially one causing damage or injury | - |
| accidental | (noun) a musical notation that makes a note sharp or flat or natural although that is not part of the key signature | - |
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| accroides | (noun) an alcohol-soluble resin from Australian trees; used in varnishes and in manufacturing paper | Synonyms: acaroid resin, accaroid resin, accroides gum, accroides resin, gum accroides |
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| acetamide | (noun) a colorless solid amide of acetic acid used as a solvent and in the synthesis of organic compounds | Synonyms: ethanamide |
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| acetanilide | (noun) a solid odourless chemical of leaf or flake-like appearance; used in rubber accelerator, dye, and camphor synthesis; metabolised to paracetamol (acetaminophen) | Synonyms: acetanilid, phenylacetamide |
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| acidemia | (noun) a blood disorder characterized by an increased concentration of hydrogen ions in the blood (which falls below 7 on the pH scale) | - |
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| acrylamide | (noun) a white crystalline amide of propenoic acid can damage the nervous system and is carcinogenic in laboratory animals | - |
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| actinide | (noun) any of a series of radioactive elements with atomic numbers 89 through 103 | Synonyms: actinoid, actinon |
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| adenoidectomy | (noun) surgical removal of the adenoids; commonly performed along with tonsillectomy | - |
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| aerides | (noun) any orchid of the genus Aerides | - |
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| aide | (noun) someone who acts as assistant | Synonyms: auxiliary |
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| (noun) an officer who acts as military assistant to a more senior officer | Synonyms: adjutant, aide-de-camp |
| ambidexterity | (noun) the property of being equally skillful with each hand | Synonyms: ambidextrousness |
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| ambidextrousness | (noun) the property of being equally skillful with each hand | Synonyms: ambidexterity |
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| amide | (noun) any organic compound containing the group -CONH2 | - |
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| anhydride | (noun) a compound formed from one or more other compounds in a reaction resulting in removal of water | - |
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| antidepressant | (noun) any of a class of drugs used to treat depression; often have undesirable side effects | Synonyms: antidepressant drug |
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| arsenide | (noun) a compound of arsenic with a more positive element | - |
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| aside | (noun) a line spoken by an actor to the audience but not intended for others on the stage | - |
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| (noun) a message that departs from the main subject | Synonyms: digression, divagation, excursus, parenthesis |
| azide | (noun) a chemical compound containing the azido group combined with an element or radical | - |
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| azoimide | (noun) a colorless explosive liquid that is volatile and poisonous and foul-smelling | Synonyms: HN, hydrazoic acid, hydrogen azide |
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| backside | (noun) the fleshy part of the human body that you sit on | Synonyms: arse, ass, behind, bottom, bum, buns, butt, buttocks, can, derriere, fanny, fundament, hind end, hindquarters, keister, nates, posterior, prat, rear, rear end, rump, seat, stern, tail, tail end, tooshie, tush |
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| (noun) the side of an object that is opposite its front | Synonyms: back end, rear |
| backslider | (noun) someone who lapses into previous undesirable patterns of behavior | Synonyms: recidivist, reversionist |
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| bacteriacide | (noun) any chemical agent that destroys bacteria | Synonyms: bactericide |
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| bactericide | (noun) any drug that destroys bacteria or inhibits their growth | Synonyms: antibacterial, antibacterial drug |
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| (noun) any chemical agent that destroys bacteria | Synonyms: bacteriacide |
| bedside | (noun) space by the side of a bed (especially the bed of a sick or dying person) | - |
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| bichloride | (noun) a compound containing two chlorine atoms per molecule | Synonyms: dichloride |
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| bidet | (noun) a basin for washing genitals and anal area | - |
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| bolide | (noun) an especially luminous meteor (sometimes exploding) | Synonyms: fireball |
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| bride | (noun) a woman who has recently been married | - |
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| (noun) a woman participant in her own marriage ceremony | - |
| bridecake | (noun) a rich cake with two or more tiers and covered with frosting and decorations; served at a wedding reception | Synonyms: wedding cake |
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| bridegroom | (noun) a man who has recently been married | Synonyms: groom |
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| (noun) a man participant in his own marriage ceremony | Synonyms: groom |
| bridesmaid | (noun) an unmarried woman who attends the bride at a wedding | Synonyms: maid of honor |
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| broadside | (noun) the simultaneous firing of all the armament on one side of a warship | - |
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| (noun) the whole side of a vessel from stem to stern | - |
| (noun) all of the armament that is fired from one side of a warship | - |
| (noun) an advertisement (usually printed on a page or in a leaflet) intended for wide distribution | Synonyms: bill, broadsheet, circular, flier, flyer, handbill, throwaway |
| (noun) a speech of violent denunciation | Synonyms: philippic, tirade |
| bromide | (noun) a trite or obvious remark | Synonyms: banality, cliche, commonplace, platitude |
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| (noun) any of the salts of hydrobromic acid; formerly used as a sedative but now generally replaced by safer drugs | - |
| burnside | (noun) facial hair that has grown down the side of a man's face in front of the ears (especially when the rest of the beard is shaved off) | Synonyms: mutton chop, side-whiskers, sideburn |
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| canyonside | (noun) the steeply sloping side of a canyon | - |
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| carbamide | (noun) the chief solid component of mammalian urine; synthesized from ammonia and carbon dioxide and used as fertilizer and in animal feed and in plastics | Synonyms: urea |
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| carbide | (noun) a binary compound of carbon with a more electropositive element | - |
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| cerebroside | (noun) A cerebroside is any of various organic lipid compounds containing glucose or galactose and glucose; it occurs in the myelin sheath of cerebrospinal neurons. | - |
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| cetrimide | (noun) a cationic detergent that is a powerful disinfectant | - |
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| chlordiazepoxide | (noun) a tranquilizer (trade names Librium and Libritabs) used in the treatment of alcoholism | Synonyms: Libritabs, Librium |
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| chloride | (noun) any compound containing a chlorine atom | - |
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| (noun) any salt of hydrochloric acid (containing the chloride ion) | - |
| chlorobenzylidenemalononitrile | (noun) a tear gas that is stronger than CN gas but wears off faster; can be deployed by grenades or cluster bombs; can cause skin burns and fatal pulmonary edema | Synonyms: CS gas |
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| chlorothiazide | (noun) a diuretic drug (trade name Diuril) used in the treatment of edema and hypertension | Synonyms: Diuril |
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| cider | (noun) a beverage made from juice pressed from apples | Synonyms: cyder |
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| ciderpress | (noun) a press that is used to extract the juice from apples | - |
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| clitoridectomy | (noun) excision of the clitoris | Synonyms: female circumcision |
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| coincidence | (noun) the temporal property of two things happening at the same time | Synonyms: co-occurrence, concurrence, conjunction |
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| (noun) the quality of occupying the same position or area in space | - |
| (noun) an event that might have been arranged although it was really accidental | Synonyms: happenstance |
| collider | (noun) an accelerator in which two beams of particles are forced to collide head on | - |
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| confidence | (noun) freedom from doubt; belief in yourself and your abilities | Synonyms: assurance, authority, self-assurance, self-confidence, sureness |
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| (noun) a secret that is confided or entrusted to another | - |
| (noun) a feeling of trust (in someone or something) | - |
| (noun) a state of confident hopefulness that events will be favorable | - |
| (noun) a trustful relationship | Synonyms: trust |
| confidentiality | (noun) discretion in keeping secret information | - |
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| (noun) the state of being secret | - |
| considerateness | (noun) kind and considerate regard for others | Synonyms: consideration, thoughtfulness |
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| consideration | (noun) a considerate and thoughtful act | Synonyms: thoughtfulness |
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| (noun) kind and considerate regard for others | Synonyms: considerateness, thoughtfulness |
| (noun) the process of giving careful thought to something | - |
| (noun) information that should be kept in mind when making a decision | Synonyms: circumstance, condition |
| (noun) a discussion of a topic (as in a meeting) | - |
| (noun) a fee charged in advance to retain the services of someone | Synonyms: retainer |
| counterevidence | (noun) (philosophy, law, sciences) Evidence which tends to disprove a claim or hypothesis. | Synonyms: counter-evidence |
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| countryside | (noun) rural regions | - |
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| cowhide | (noun) a heavy flexible whip braided from leather made from the hide of a cow | - |
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| (noun) leather made from the hide of a cow | Synonyms: cowskin |
| (noun) the hide of a cow | - |
| curbside | (noun) the side of a sidewalk that is bordered by a curb | - |
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| cyanamide | (noun) a weak soluble dibasic acid (the parent acid of cyanamide salts) | Synonyms: cyanamid |
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| (noun) a compound used as a fertilizer and as a source of nitrogen compounds | Synonyms: calcium-cyanamide |
| cyanide | (noun) an extremely poisonous salt of hydrocyanic acid | - |
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| (noun) any of a class of organic compounds containing the cyano radical -CN | Synonyms: nitril, nitrile |
| cyanuramide | (noun) a white crystalline organic base; used mainly in making melamine resins | Synonyms: melamine |
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| daminozide | (noun) a chemical sprayed on fruit trees to regulate their growth so the entire crop can be harvested at one time | Synonyms: Alar |
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| debridement | (noun) surgical removal of foreign material and dead tissue from a wound in order to prevent infection and promote healing | - |
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| deoxynucleotide | (noun) Any nucleotide that contains a deoxy sugar. | - |
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| desideratum | (noun) something desired as a necessity | - |
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| diazoxide | (noun) vasodilator (trade name Hyperstat) used to treat severe hypertension | Synonyms: Hyperstat |
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| dichloride | (noun) a compound containing two chlorine atoms per molecule | Synonyms: bichloride |
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| dideoxycytosine | (noun) an antiviral drug used to combat HIV infection; a nucleoside analog reverse transcriptase inhibitor (NARTI) | Synonyms: ddC, DDC, zalcitabine |
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| dideoxyinosine | (noun) an antiviral drug used to combat HIV infection, a reverse transcriptase inhibitor | Synonyms: ddI, DDI, didanosine |
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| diffidence | (noun) lack of self-confidence | Synonyms: self-distrust, self-doubt |
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| dioxide | (noun) an oxide containing two atoms of oxygen in the molecule | - |
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| disaccharide | (noun) any of a variety of carbohydrates that yield two monosaccharide molecules on complete hydrolysis | - |
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| dissidence | (noun) disagreement; especially disagreement with the government | - |
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| dissident | (noun) a person who dissents from some established policy | Synonyms: contestant, dissenter, objector, protester |
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| divide | (noun) a ridge of land that separates two adjacent river systems | Synonyms: water parting, watershed |
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| (noun) a serious disagreement between two groups of people (typically producing tension or hostility) | - |
| dividend | (noun) that part of the earnings of a corporation that is distributed to its shareholders; usually paid quarterly | - |
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| (noun) a bonus; something extra (especially a share of a surplus) | - |
| (noun) a number to be divided by another number | - |
| divider | (noun) a vertical structure that divides or separates (as a wall divides one room from another) | Synonyms: partition |
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| (noun) a drafting instrument resembling a compass that is used for dividing lines into equal segments or for transferring measurements | - |
| (noun) a person who separates something into parts or groups | - |
| (noun) a taxonomist who classifies organisms into many groups on the basis of relatively minor characteristics | Synonyms: splitter |
| dockside | (noun) the region adjacent to a boat dock | - |
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| downside | (noun) a negative aspect of something that is generally positive | - |
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| ebbtide | (noun) the tide while water is flowing out | - |
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| eider | (noun) duck of the Northern Hemisphere much valued for the fine soft down of the females | Synonyms: eider duck |
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| eiderdown | (noun) down of the eider duck | - |
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| (noun) a soft quilt usually filled with the down of the eider | Synonyms: continental quilt, duvet |
| embroiderer | (noun) someone who ornaments with needlework | - |
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| embroideress | (noun) a woman embroiderer | - |
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| embroidery | (noun) decorative needlework | Synonyms: fancywork |
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| (noun) elaboration of an interpretation by the use of decorative (sometimes fictitious) detail | Synonyms: embellishment |
| encainide | (noun) antiarrhythmic drug (trade name Enkaid) used to treat life-threatening arrhythmias but increases the risk of sudden death in heart attack patients | Synonyms: Enkaid |
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| epidemic | (noun) a widespread outbreak of an infectious disease; many people are infected at the same time | - |
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| epidemiologist | (noun) a medical scientist who studies the transmission and control of epidemic diseases | - |
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| epidemiology | (noun) the branch of medical science dealing with the transmission and control of disease | - |
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| epidendron | (noun) any of various orchids of the genus Epidendrum | - |
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| epidermis | (noun) the outer layer of the skin covering the exterior body surface of vertebrates | Synonyms: cuticle |
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| ethanamide | (noun) a colorless solid amide of acetic acid used as a solvent and in the synthesis of organic compounds | Synonyms: acetamide |
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| ethosuximide | (noun) an anticonvulsant drug (trade names Emeside and Zarontin) used to treat petit mal epilepsy | Synonyms: Emeside, Zarontin |
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| eventide | (noun) the latter part of the day (the period of decreasing daylight from late afternoon until nightfall) | Synonyms: eve, even, evening |
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| evidence | (noun) your basis for belief or disbelief; knowledge on which to base belief | Synonyms: grounds |
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| (noun) (law) all the means by which any alleged matter of fact whose truth is investigated at judicial trial is established or disproved | - |
| (noun) an indication that makes something evident | - |
| exaltolide | (noun) the macrocyclic lactone having fifteen carbon atoms; it has a musky scent, similar to exaltone. | - |
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| ferricyanide | (noun) salt of ferricyanic acid obtained by oxidation of a ferrocyanide | - |
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