/ Dictionary / Index T Tyndall: Meaning and Definition of Find definitions for: Tyn•dall Pronunciation: (tin'dl), [key] 1820–93, English physicist. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: tyndall (Thesaurus) Tyndale Tyndall beam 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