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radar
radar astronomy
radar beacon
radar gun
radar screen
radar trap
radarscope
Radcliff
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raddle (2)
raddled
radial
radial drilling machine
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radial symmetry
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radiant heat
ra·di·ant heat


noun 
Definition:
 
heat transferred by infrared radiation: heat transmitted by infrared radiation from a heat source, and not by conduction or convection
Encarta® World English Dictionary [North American Edition] © & (P)2009 Microsoft Corporation. All rights reserved. Developed for Microsoft by Bloomsbury Publishing Plc.
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