Breadcrumb Home > Dictionary > Index T thermal barrier: Meaning and Definition of Find definitions for: ther'mal bar'rier Pronunciation: [key] — Aeron., Rocketry. Aeron.,Rocketry. the high temperatures produced by the friction between a supersonic object and the earth's atmosphere that limit the speed of an airplane or rocket. Also called Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. thermal analysis thermal conductivity TrendingHere are the facts and trivia that people are buzzing about. Chinese New Year History, Meaning, and Celebrations Current Events This Week: February 2024 Valentine's Day Valentine's Day History Mardi Gras 30 "Charlie and the Chocolate Factory" Quotes ✖ Related Content Daily Word Quiz: prescient Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language