/ Dictionary / Index A atmospheric braking: Meaning and Definition of Find definitions for: at'mospher'ic brak'ing Pronunciation: [key] — Rocketry. Rocketry. a technique of reentry in which the vehicle is maneuvered in the upper atmosphere so as to lose velocity by utilizing drag without overheating. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. atmospheric boundary layer atmospheric electricity Related Content Daily Word Quiz: perspicacious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language