/ Dictionary / Index T tentacle: Meaning and Definition of Find definitions for: ten•ta•cle Pronunciation: (ten'tu-kul), [key] — n. any of various slender, flexible processes or appendages in animals, esp. invertebrates, that serve as organs of touch, prehension, etc.; feeler. a sensitive filament or process, as one of the glandular hairs of the sundew. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: tentacle (Thesaurus) tent tentacled Related Content Daily Word Quiz: heifer Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language