Webster's English Dictionary

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radiate

1. ra.di.ate \'ra-d-e--.a-t\ vb [L radiatus, pp. of radiare, fr. radius 
   ray] 1: to send out rays : shine brightly  2: to issue in rays  3: to 
   proceed in a direct line from or toward a center  1: to send out in rays  
   2: IRRADIATE, ILLUMINATE  3: to spread aboard or around as if from a center 
2. ra.di.ate \-e--*t, -e--.a-t\ aj : having rays or radial parts : as  : 
   having ray flowers  : characterized by radial symmetry  - ra.di.ate.ly av