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radiational cooling
radiative collision
radiative forcing
radiator
radical
radical chic
radical sign
radicalise
radicalism
radicalize
radicand
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radiate

ra·di·ate [ ráydee àyt ]


verb  (past and past participle ra·di·at·ed, present participle ra·di·at·ing, 3rd person present singular ra·di·ates)
Definition:
 
1. transitive and intransitive verb physics emit energy as rays or waves: to send out energy such as heat or light, in the form of rays or waves, or be sent out in this form

2. transitive and intransitive verb show feeling or quality: to show a feeling or quality clearly through looks, speech, behavior, or content, or be shown in this way
a popular speech that radiated goodwill and commitment

3. transitive and intransitive verb spread from center: to spread out from a central point like rays, or cause something to spread out in this way

4. intransitive verb biology develop and spread: to develop into several different forms capable of exploiting different resources or of living in different environments ( refers to animal and plant species )



adjective 
Definition:
 
1. with radiating parts: with, or in the form of, parts spreading out from a common center

2. botany with petals radiating from center: describes a flower head that has petals radiating from a center, e.g. that of a daisy

3. zoology with radially symmetrical body: used to describe the bodies of starfish and other vertebrate ocean organisms with body parts radiating from a common center

4. with rays: surrounded or decorated with rays

[Early 17th century. < Latin radiat-, past participle of radiare "emit rays" < radius "ray"]

ra·di·ate·ly [ ráydee ətlee ] adverb
ra·di·a·tive [ ráydee ətiv ] adjective
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