Breadcrumb Home > Dictionary > Index T tephra: Meaning and Definition of Find definitions for: teph•ra Pronunciation: (tef'ru), [key] — n. (used with a pl. v.) clastic volcanic material, as scoria, dust, etc., ejected during an eruption. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. tephillin tephrite TrendingHere are the facts and trivia that people are buzzing about. Hanukkah Origins of the Christmas Holiday Jewish Holidays, 2010-2030 (A.M. 5770-5791) Western Christian Holidays, 2010-2030 Krampus: The Christmas Devil Kwanzaa ✖ Related Content Daily Word Quiz: praedial Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language