/ Dictionary / Index A aculeate: Meaning and Definition of Find definitions for: a•cu•le•ate Pronunciation: (u-ky'lē-it, -āt"), [key] — adj. having or being any sharp-pointed structure. having a slender ovipositor or sting, as the hymenopterous insects. pointed; stinging. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: aculeate (Thesaurus) acuity aculeus Related Content Daily Word Quiz: perspicacious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language