The American Heritage® Dictionary of the English Language, 4th edition Copyright © 2010 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
transitive verb re·ra·di·at·ed, re·ra·di·at·ing, re·ra·di·ates
To emit (absorbed radiation) anew: “Different organic materials in the soil reradiate the sun's heat at different rates” (Lori Oliwenstein).