| one-step procedure | A procedure in which a surgical biopsy is performed under general anesthesia and if cancer is found, a mastectomy or lumpectomy is done immediately as part of the same operation. (09 Oct 1997) |
|---|---|
| 3a-hydroxy-5a-pregnan-20-one | A catabolite of progesterone; found in the urine of pregnant women. (05 Mar 2000) |
| 7 alpha-hydroxy-4-cholesten-3-one-12 alpha monooxygenase | <enzyme> Liver microsomal enzyme active in conversion of cholesterol to cholic acid; introduces a 12 alpha-hydroxyl group into the steroid nucleus of cholesterol Registry number: EC 1.14.99.- Synonym: 7-hco-monooxygenase, hco 12 alpha-hydroxylase (26 Jun 1999) |
| -one | <chemistry, suffix> A termination indicating that the hydrocarbon to the name of which it is affixed belongs to the fourth series of hydrocarbons, or the third series of unsaturated hydrocarbonsl as, nonone. (29 Oct 1998) |