17-ketosteroid

17-ketosteroid
17-ketosteroid 'sev-ən-.tēn- n any of the ketosteroids (as androsterone, dehydroepiandrosterone, and estrone) that have the keto group attached to carbon atom 17 of the steroid ring structure, are present in normal human urine, and may be an indication of a tumor of the adrenal cortex or ovary when present in excess

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(17-KS) any of the C19 steroids having a keto group on the 17 carbon, usually denoting the urinary metabolites of androgens secreted by the adrenal cortex and gonads. They are accumulated and excreted abnormally in certain adrenal cortical and ovarian tumors and congenital adrenal hyperplasia.

Medical dictionary. 2011.

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Look at other dictionaries:

  • ketosteroid — [kēt΄ō stir′oid΄, kēt΄ōster′oid΄] n. a steroid containing a ketone group in the molecule …   English World dictionary

  • ketosteroid — ke·to·ste·roid .kēt ō sti(ə)r .ȯidalso ste(ə)r n a steroid (as cortisone or estrone) containing a ketone group esp 17 KETOSTEROID * * * ke·to·ster·oid (ke″to sterґoid) a steroid that possesses ketone groups on functional carbon atoms,… …   Medical dictionary

  • ketosteroid — noun Etymology: International Scientific Vocabulary Date: 1939 a steroid (as cortisone or estrone) containing a ketone group …   New Collegiate Dictionary

  • ketosteroid — /ki tos teuh royd /, n. Biochem. any of a group of steroids containing a ketone group. [1935 40; KETO + STEROID] * * * …   Universalium

  • ketosteroid — noun Any steroid having a ketone functional group …   Wiktionary

  • Ketosteroid — Ke|to|ste|ro|id: Sammelbez. für die hormonaktiven Steroide mit einer Ketogruppe an C 17 (17 K.), seltener an C 20 (20 K.) …   Universal-Lexikon

  • Ketosteroid — Keto|stero|i̱d [↑Keton u. ↑Steroid] s; [e]s, e: Steroid mit einer Ketogruppe an einem bestimmten Kohlenstoffatom (Abk.: KS) …   Das Wörterbuch medizinischer Fachausdrücke

  • ketosteroid — ke·to·steroid …   English syllables

  • ketosteroid — ke•tos•ter•oid [[t]kɪˈtɒs təˌrɔɪd[/t]] n. phl biochem. any of a group of steroids containing a ketone group • Etymology: 1935–40 …   From formal English to slang

  • ketosteroid — noun a steroid containing a ketone group • Hypernyms: ↑steroid • Hyponyms: ↑androsterone, ↑estrone, ↑oestrone, ↑theelin, ↑Estronol, ↑cortisone, ↑ …   Useful english dictionary

  • 17-Ketosteroid — A 17 ketosteroid is a steroid that has a ketone (C=O) functional group at the 17 position (in the upper right corner of most diagrams.)Examples of 17 ketosteroids include:* Androstenedione * Androsterone * Estrone * DehydroepiandrosteroneExternal …   Wikipedia

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