/ Dictionary / Index N nonsteroidal: Meaning and Definition of Find definitions for: non•ste•roi•dal Pronunciation: (non"ste-roid'l, -sti-), [key] — Pharm. Pharm. —adj. of or pertaining to a substance that is not a steroid but has certain similar physiological effects. —n. any such substance, esp. a nonsteroidal anti-inflammatory drug, as ibuprofen. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: nonsteroidal (Thesaurus) nonstative nonstick Related Content Daily Word Quiz: agitated Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language