/ Dictionary / Index S seta: Meaning and Definition of Find definitions for: se•ta Pronunciation: (sē'tu), [key] — pl. -tae a stiff hair; bristle or bristlelike part. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: seta (Thesaurus) set setaceous Related Content Daily Word Quiz: stringent Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language