un radiative

ra·di·a·tive

[rey-dee-ey-tiv]
adjective
giving off radiation.
Also, ra·di·a·to·ry [rey-dee-uh-tawr-ee, -tohr-ee] .


Origin:
1830–40; radiat(ion) + -ive

non·ra·di·a·tive, adjective
sub·ra·di·a·tive, adjective
un·ra·di·a·tive, adjective
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2013.
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Collins
World English Dictionary
radiative or radiatory (ˈreɪdɪətɪv, ˈreɪdɪətərɪ, -trɪ) [Click for IPA pronunciation guide]
 
adj
physics emitting or causing the emission of radiation: a radiative collision
 
radiatory or radiatory
 
adj

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
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00:10
Un radiative is always a great word to know.
So is flibbertigibbet. Does it mean:
a fool or simpleton; ninny.
a chattering or flighty, light-headed person.
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