Englishradiate
▸ verb /ˈreɪdieɪt 
/
1 [with object] emit (energy, especially light or heat) in the form of rays or waves:
the hot stars radiate energy.
▪ [no object, with adverbial of direction] (of light, heat, or other energy) be emitted in the form of rays or waves:
the continual stream of energy that radiates from the sun.
▪ (of a person) clearly emanate (a strong feeling or quality) through their expression or bearing:
she lifted her chin, radiating defiance.
▪ (radiate from) (of a feeling or quality) emanate clearly from:
leadership and confidence radiate from her.
2 [no object, with adverbial of direction] diverge or spread from or as if from a central point:
he ran down one of the passages that radiated from the room.
▪ Biology (of an animal or plant group) evolve into a variety of forms adapted to new ways of life.
– ORIGIN late 16th century: from Latin radiat- ‘emitted in rays’, from the verb radiare, from radius ‘ray, spoke’.