Pronunciation: (rē-hē'ting), [key]
1. heating again.
2. Aeron.a process in certain turbojet engines in which gases are expanded by turbines after combustion, burned again in a second chamber, expanded again by additional turbines, and released through the exhaust nozzle.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.