| adrenosterone | (noun) a steroid having androgenic activity; obtained from the cortex of the adrenal gland | - |
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| aldosterone | (noun) a corticosteroid hormone that is secreted by the cortex of the adrenal gland; regulates salt (sodium and potassium) and water balance | - |
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| aleurone | (noun) granular protein in outermost layer of endosperm of many seeds or cereal grains | - |
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| amiodarone | (noun) an antiarrhythmic drug (trade name Cordarone) that has potentially fatal side effects and is used to control serious heart rhythm problems only when safer agents have been ineffective | Synonyms: Cordarone |
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| androsterone | (noun) an androgenic hormone that is less active than testosterone | - |
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| brachistochrone | (noun) a curve between two points along which a body can move under gravity in a shorter time than for any other curve. | - |
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| buspirone | (noun) a drug (trade name BuSpar) designed specifically for anxiety | Synonyms: BuSpar |
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| chaperone | (noun) one who accompanies and supervises a young woman or gatherings of young people | Synonyms: chaperon |
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| cicerone | (noun) a guide who conducts and informs sightseers | - |
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| corticosterone | (noun) secreted by the adrenal cortex; involved in regulating water and electrolyte balance in the body | - |
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| coumarone | (noun) a colorless oily compound extracted from coal tar and used in manufacturing synthetic resins | Synonyms: benzofuran, cumarone |
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| crone | (noun) an ugly evil-looking old woman | Synonyms: beldam, beldame, hag, witch |
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| cumarone | (noun) a colorless oily compound extracted from coal tar and used in manufacturing synthetic resins | Synonyms: benzofuran, coumarone |
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| drone | (noun) stingless male bee in a colony of social bees (especially honeybees) whose sole function is to mate with the queen | - |
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| (noun) a pipe of the bagpipe that is tuned to produce a single continuous tone | Synonyms: bourdon, drone pipe |
| (noun) an aircraft without a pilot that is operated by remote control | Synonyms: pilotless aircraft, radio-controlled aircraft |
| (noun) an unchanging intonation | Synonyms: droning, monotone |
| (noun) someone who takes more time than necessary; someone who lags behind | Synonyms: dawdler, laggard, lagger, poke, trailer |
| estrone | (noun) a naturally occurring weak estrogenic hormone secreted by the mammalian ovary; synthesized (trade name Estronol) and used to treat estrogen deficiency | Synonyms: Estronol, oestrone, theelin |
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| isochrone | (noun) an isogram connecting points at which something occurs or arrives at the same time | - |
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| krone | (noun) the basic unit of money in Denmark | Synonyms: Danish krone |
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| (noun) the basic unit of money in Norway | Synonyms: Norwegian krone |
| medroxyprogesterone | (noun) a progestin compound (trade name Provera) used to treat menstrual disorders | Synonyms: Provera |
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| methyltestosterone | (noun) an androgenic compound contained in drugs that are used to treat testosterone deficiency and female breast cancer and to stimulate growth and weight gain | - |
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| minestrone | (noun) soup made with a variety of vegetables | Synonyms: petite marmite, vegetable soup |
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| norethindrone | (noun) a synthetic progestational hormone (trade name Norlutin) used in oral contraceptives and to treat endometriosis | Synonyms: norethandrolone, norethindrone acetate, Norlutin |
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| oestrone | (noun) a naturally occurring weak estrogenic hormone secreted by the mammalian ovary; synthesized (trade name Estronol) and used to treat estrogen deficiency | Synonyms: estrone, Estronol, theelin |
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| padrone | (noun) an owner or proprietor of an inn in Italy | - |
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| (noun) an employer who exploits Italian immigrants in the U.S. | - |
| progesterone | (noun) a steroid hormone (trade name Lipo-Lutin) produced in the ovary; prepares and maintains the uterus for pregnancy | Synonyms: Lipo-Lutin |
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| testosterone | (noun) a potent androgenic hormone produced chiefly by the testes; responsible for the development of male secondary sex characteristics | - |
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| throne | (noun) the position and power of an exalted person (a sovereign or bishop) who is entitled to sit in a chair of state on ceremonial occasions | - |
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| (noun) the chair of state for a monarch, bishop, etc. | - |
| (noun) a plumbing fixture for defecation and urination | Synonyms: can, commode, crapper, pot, potty, stool, toilet |