/ Dictionary / Index A ancilla: Meaning and Definition of Find definitions for: an•cil•la Pronunciation: (an-sil'u), [key] — pl. -las. an accessory; auxiliary or adjunct. a maidservant. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. ancile ancillary 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