| achlamydeous | (adjective) not having a floral envelope or perianth | - |
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| achlorhydria | (noun) an abnormal deficiency or absence of free hydrochloric acid in the gastric juice; often associated with severe anemias and cancer of the stomach | - |
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| achlorhydric | (adjective) lacking hydrochloric acid | - |
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| archly | (adverb) in an arch manner; with playful slyness or roguishness | - |
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| bacteriochlorophyll | (noun) a substance in photosensitive bacteria that is related to but different from chlorophyll of higher plants | - |
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| bichloride | (noun) a compound containing two chlorine atoms per molecule | Synonyms: dichloride |
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| branchless | (adjective) having no branches | - |
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| branchlet | (noun) a small branch or division of a branch (especially a terminal division); usually applied to branches of the current or preceding year | Synonyms: sprig, twig |
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| breechloader | (noun) a gun that is loaded at the breech | - |
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| chlamydeous | (adjective) having a floral envelope or perianth consisting of a calyx and/or corolla | - |
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| chlamydia | (noun) coccoid rickettsia infesting birds and mammals; cause infections of eyes and lungs and genitourinary tract | - |
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| (noun) a sexually transmitted infection caused by bacteria of the genus Chlamydia | - |
| chlamydial | (adjective) of or pertaining to the sexually transmitted infection or to the parasite | - |
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| chlamydospore | (noun) thick-walled asexual resting spore of certain fungi and algae | - |
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| chlamyphore | (noun) very small Argentine armadillo with pale silky hair and pink plates on head and neck | Synonyms: Chlamyphorus truncatus, fairy armadillo, pichiciago, pichiciego |
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| chlamys | (noun) a short mantle or cape fastened at the shoulder; worn by men in ancient Greece | - |
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| (noun) collective term for the outer parts of a flower consisting of the calyx and corolla and enclosing the stamens and pistils | Synonyms: floral envelope, perianth, perigone, perigonium |
| chloasma | (noun) a tan discoloration of a woman's face that is associated with pregnancy or with the use of oral contraceptives | Synonyms: mask of pregnancy, melasma |
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| chlorambucil | (noun) an alkylating agent (trade name Leukeran) used to treat some kinds of cancer | Synonyms: Leukeran |
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| chloramine | (noun) any of several compounds containing chlorine and nitrogen; used as an antiseptic in wounds | Synonyms: chloramine-T |
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| chloramphenicol | (noun) an oral antibiotic (trade name Chloromycetin) used to treat serious infections (especially typhoid fever) | Synonyms: Chloromycetin |
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| chlorate | (noun) any salt of chloric acid | - |
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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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| chlorella | (noun) any alga of the genus Chlorella | - |
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| chlorenchyma | (noun) parenchyma whose cells contain chloroplasts | - |
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| chlorhexidine | (noun) a long-lasting liquid antiseptic; used by surgeons to wash their hands before performing surgery | - |
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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) | - |
| chlorinate | (verb) disinfect with chlorine | - |
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| (verb) treat or combine with chlorine | - |
| chlorination | (noun) disinfection of water by the addition of small amounts of chlorine or a chlorine compound | - |
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| (noun) the addition or substitution of chlorine in organic compounds | - |
| chlorine | (noun) a common nonmetallic element belonging to the halogens; best known as a heavy yellow irritating toxic gas; used to purify water and as a bleaching agent and disinfectant; occurs naturally only as a salt (as in sea water) | Synonyms: atomic number 17, Cl |
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| chlorinity | (noun) a measure of the quantity of chlorine or other halides in water (especially seawater) | - |
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| chlorite | (noun) a generally green or black mineral; it occurs as a constituent of many rocks typically in the form of a flat crystal | - |
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| chloroacetophenone | (noun) a tear gas that is weaker than CS gas but lasts longer | Synonyms: CN gas |
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| chlorobenzene | (noun) a colorless volatile flammable liquid with an almond odor that is made from chlorine and benzene; used as a solvent and in the production of phenol and DDT and other organic compounds | - |
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| 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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| chlorofluorocarbon | (noun) a fluorocarbon with chlorine; formerly used as a refrigerant and as a propellant in aerosol cans | Synonyms: CFC |
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| chloroform | (noun) a volatile liquid haloform (CHCl3); formerly used as an anesthetic | Synonyms: trichloromethane |
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| (verb) anesthetize with chloroform | - |
| chlorofucin | (noun) the chlorophyll present in brown algae, diatoms, and flagellates | Synonyms: chlorophyll c |
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| chlorophyl | (noun) any of a group of green pigments found in photosynthetic organisms; there are four naturally occurring forms | Synonyms: chlorophyll |
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| chlorophyll | (noun) any of a group of green pigments found in photosynthetic organisms; there are four naturally occurring forms | Synonyms: chlorophyl |
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| chlorophyllose | (adjective) relating to or being or containing chlorophyll | Synonyms: chlorophyllous |
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| chlorophyllous | (adjective) relating to or being or containing chlorophyll | Synonyms: chlorophyllose |
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| chlorophyte | (noun) algae that are clear green in color; often growing on wet ricks or damp wood or the surface of stagnant water | Synonyms: green algae |
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| chloropicrin | (noun) a heavy colorless insoluble liquid compound that causes tears and vomiting; used as a pesticide and as tear gas | Synonyms: nitrochloroform |
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| chloroplast | (noun) plastid containing chlorophyll and other pigments; in plants that carry out photosynthesis | - |
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| chloroplatinate | (noun) any salt of chloroplatinic acid. | - |
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| chloroprene | (noun) derivative of butadiene used in making neoprene by polymerization | - |
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| chloroquine | (noun) an antimalarial drug used to treat malaria and amebic dysentery and systemic lupus erythematosus | - |
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| chlorosis | (noun) iron deficiency anemia in young women; characterized by weakness and menstrual disturbances and a green color to the skin | Synonyms: greensickness |
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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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| chlorotic | (adjective) of or pertaining to or suffering from chlorosis | Synonyms: greensick |
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| chlorpromazine | (noun) a drug (trade name Thorazine) derived from phenothiazine that has antipsychotic effects and is used as a sedative and tranquilizer | Synonyms: Thorazine |
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| chlorpyrifos | (noun) a common organophosphate insecticide | - |
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| chlortetracycline | (noun) a yellow crystalline antibiotic (trade name Aureomycin) used to treat certain bacterial and rickettsial diseases | Synonyms: Aureomycin |
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| chlorthalidone | (noun) a diuretic (trade names Hygroton and Thalidone) used to control hypertension and conditions that cause edema; effective in lowering blood pressure to prevent heart attacks | Synonyms: Hygroton, Thalidone |
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| churchly | (adjective) resembling or suggesting or appropriate to a church | - |
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| cichlid | (noun) freshwater fishes of tropical America and Africa and Asia similar to American sunfishes; some are food fishes; many small ones are popular in aquariums | Synonyms: cichlid fish |
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| cochlea | (noun) the snail-shaped tube (in the inner ear coiled around the modiolus) where sound vibrations are converted into nerve impulses by the organ of Corti | - |
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| cochlear | (adjective) of or relating to the cochlea of the ear | - |
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| dechlorinate | (verb) remove chlorine from (water) | - |
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| dichloride | (noun) a compound containing two chlorine atoms per molecule | Synonyms: bichloride |
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| dichlorodiphenyltrichloroethane | (noun) an insecticide that is also toxic to animals and humans; banned in the United States since 1972 | Synonyms: DDT |
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| dichloromethane | (noun) a nonflammable liquid used as a solvent and paint remover and refrigerant | Synonyms: methylene chloride |
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| ethchlorvynol | (noun) a mild sedative-hypnotic drug (trade name Placidyl) | Synonyms: Placidyl |
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| hatchling | (noun) any recently hatched animal (especially birds) | - |
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| hexachlorophene | (noun) antibacterial substance that is a water-soluble powder used in antiseptic soaps and toothpaste | - |
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| hydrochloride | (noun) a complex consisting of an organic base in association with hydrogen chloride | - |
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| hydrochlorofluorocarbon | (noun) a fluorocarbon that is replacing chlorofluorocarbon as a refrigerant and propellant in aerosol cans; considered to be somewhat less destructive to the atmosphere | Synonyms: HCFC |
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| hydrochlorothiazide | (noun) a diuretic drug (trade name Microzide, Esidrix, and HydroDIURIL) used in the treatment of hypertension | Synonyms: Esidrix, HydroDIURIL, Microzide |
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| hydroxychloroquine | (noun) anti-inflammatory drug (trade name Plaquenil) used in the treatment of rheumatoid arthritis and malaria and lupus erythematosus | Synonyms: Plaquenil |
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| hypochlorite | (noun) any salt or ester of hypochlorous acid | - |
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| iodochlorhydroxyquin | (noun) drug used to treat certain fungal infection (as athlete's foot) | Synonyms: Clioquinol |
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| leechlike | (adjective) of plants or persons; having the nature or habits of a parasite or leech; living off another | Synonyms: bloodsucking, parasitic, parasitical |
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| marchland | (noun) district consisting of the area on either side of a border or boundary of a country or an area | Synonyms: border district, borderland, march |
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| matchless | (adjective) eminent beyond or above comparison | Synonyms: nonpareil, one, one and only, peerless, unmatchable, unmatched, unrivaled, unrivalled |
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| matchlessness | (noun) The state or condition of being matchless, of having no equal. | Synonyms: peerlessness |
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| matchlock | (noun) an early style of musket; a slow-burning wick would be lowered into a hole in the breech to ignite the charge | - |
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| nitrochloroform | (noun) a heavy colorless insoluble liquid compound that causes tears and vomiting; used as a pesticide and as tear gas | Synonyms: chloropicrin |
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| nitrochloromethane | (noun) gaseous form of chloropicrin used as tear gas | - |
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| ochlocracy | (noun) a political system in which a mob is the source of control; government by the masses | Synonyms: mobocracy |
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| penuchle | (noun) a card game played with a pack of forty-eight cards (two of each suit for high cards); play resembles whist | Synonyms: bezique, pinochle, pinocle |
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| perchlorate | (noun) a salt of perchloric acid | - |
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| perchloride | (noun) a chloride containing an unusually high proportion of chlorine | - |
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| perchloromethane | (noun) a colorless nonflammable liquid used as a solvent for fats and oils; because of its toxicity its use as a cleaning fluid or fire extinguisher has declined | Synonyms: carbon tet, carbon tetrachloride, tetrachloromethane |
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| pinochle | (noun) a card game played with a pack of forty-eight cards (two of each suit for high cards); play resembles whist | Synonyms: bezique, penuchle, pinocle |
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| pouchlike | (adjective) shaped like a pouch | Synonyms: bursiform, pouch-shaped, saclike |
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| prechlorination | (noun) chlorination prior to another chemical process | - |
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| prochlorperazine | (noun) antipsychotic and antiemetic drug used to treat schizophrenia and to combat nausea and vomiting | - |
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| quenchless | (adjective) impossible to quench | Synonyms: unquenchable |
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| radiochlorine | (noun) a radioactive isotope of chlorine | - |
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| richly | (adverb) in a rich and lavish manner | Synonyms: extravagantly, lavishly |
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| (adverb) in a rich manner | Synonyms: high, luxuriously |
| (adverb) to an ample degree or in an ample manner | Synonyms: amply |
| schlemiel | (noun) (Yiddish) a dolt who is a habitual bungler | Synonyms: shlemiel |
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| schlep | (noun) a tedious or difficult journey | Synonyms: shlep |
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| (noun) (Yiddish) an awkward and stupid person | Synonyms: schlepper, shlep, shlepper |
| (verb) pull along heavily, like a heavy load against a resistance | Synonyms: pull along, shlep |
| schlepper | (noun) (Yiddish) an awkward and stupid person | Synonyms: schlep, shlep, shlepper |
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| schlimazel | (noun) (Yiddish) a very unlucky or inept person who fails at everything | Synonyms: shlimazel |
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| schlock | (noun) merchandise that is shoddy or inferior | Synonyms: dreck, shlock |
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| schlockmeister | (noun) (slang) a merchant who deals in shoddy or inferior merchandise | Synonyms: shlockmeister |
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| searchlight | (noun) a light source with reflectors that projects a beam of light in a particular direction | - |
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| speechless | (adjective) temporarily incapable of speaking | Synonyms: dumb |
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| speechlessly | (adverb) in a manner indicating that one is deprived of speech by physical weakness or emotion | - |
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| speechlessness | (noun) the property of being speechless | - |
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| stanchly | (adverb) in a staunch manner | Synonyms: staunchly |
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