afterheat

[af-ter-heet, ahf-]

af·ter·heat

[af-ter-heet, ahf-]
noun Physics.
the heat generated by radioactivity remaining in a nuclear reactor after it has been shut down.

Origin:
1970–75; after + heat
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2012.
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Afterheat is always a great word to know.
So is supercritical. Does it mean:
pertaining to a mass of radioactive material in which the rate of a chain reaction increases with time
the reciprocal of the bulk modulus, equal to the ratio of the fractional change in volume to the stress applied to a body
Collins
World English Dictionary
afterheat (ˈɑːftəˌhiːt)
 
n
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 10th Edition
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