afterheat

[af-ter-heet, ahf-]

noun Physics.

the heat generated by radioactivity remaining in a nuclear reactor after it has been shut down.

Origin of afterheat

First recorded in 1970–75; after + heat

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

British Dictionary definitions for afterheat

afterheat

noun

the heat generated in a nuclear reactor after it has been shut down, produced by residual radioactivity in the fuel elements

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012