ster|oid

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• cor|ti|co|ster|oid — «KR tuh koh STEHR oyd», noun, adjective. –n. any one of a group of steroids, many of them hormones, produced by the adrenal cortex, such as corticosterone, which play an important part in metabolism and the ability of the body to withstand stress …   Useful english dictionary

• steroid 11β-monooxygenase — ster·oid 11β mono·oxy·gen·ase (sterґoid mon″o okґsə jən ās) [EC 1.14.15.4] an enzyme of the oxidoreductase class that catalyzes the NADPH dependent hydroxylation of steroids at the 11 position as a step in the synthesis… …   Medical dictionary

• steroid 17α-monooxygenase — ster·oid 17α mono·oxy·gen·ase (sterґoid mon″o okґsə jən ās) [EC 1.14.99.9] an enzyme of the oxidoreductase class that catalyzes the hydroxylation of steroids at the 17 position. The enzyme is a microsomal cytochrome P… …   Medical dictionary

• steroid 21-monooxygenase — ster·oid 21 mono·oxy·gen·ase (sterґoid mon″o okґsə jən ās) [EC 1.14.99.10] an enzyme of the oxidoreductase class that catalyzes the NADPH dependent hydroxylation of steroids at the 21 position. The enzyme is a microsomal… …   Medical dictionary

• steroid sulfatase — ster·oid sul·fa·tase (sterґoid sulґfə tās) steryl sulfatase …   Medical dictionary

• steroid — ster|oid [ ste,rɔıd, stı,rɔıd ] noun count a medicine used by doctors for treating conditions such as swelling, or, illegally, by ATHLETES to improve their performance …   Usage of the words and phrases in modern English

• Corticosteroid — Any of the steroid hormones made by the cortex (outer layer) of the adrenal gland. Cortisol is a corticosteroid. * * * A steroid produced by the adrenal cortex ( i.e., adrenal corticoid); a corticoid containing a steroid. SYN: adrenocorticoid,… …   Medical dictionary

• Steroid — A large group of chemical substances related in structure to one another and each containing the same chemical skeleton (a tetracyclic cyclopenta[a]phenanthrene skeleton). Many hormones, body constituents, and drugs are steroids. Examples: drugs… …   Medical 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

• 11β-hydroxysteroid dehydrogenase deficiency — 11β hy·droxy·ster·oid de·hy·dro·gen·ase de·fi·cien·cy (hi drok″se sterґoid de hiґdro jən ās) deficiency of activity of either of the isoforms of 11β hydroxysteroid dehydrogenase. Deficiency of the type 1 isozyme is… …   Medical dictionary