/ Dictionary / Index T taenia: Meaning and Definition of Find definitions for: tae•ni•a Pronunciation: (tē'nē-u), [key] — pl. -ni•ae a headband or fillet. (on a Doric entablature) a fillet or band separating the frieze from the architrave. a ribbonlike structure, as certain bands of white nerve fibers in the brain. any tapeworm of the genus Taenia, parasitic in humans and other mammals. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: taenia (Thesaurus) ta'en taeniacide Related Content Daily Word Quiz: diligent Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language