Definition of: radiate

(rā′dē·āt) v. ·at·ed, ·at·ing v.i.
1. To emit rays or radiation; be diant.
2. To issue forth in rays, as light from the sun.
3. To spread out from a center, as the spokes of a wheel.
—v.t.
4. To send out or emit in rays.
5. To cause to spread as if from a center; diffuse; disseminate.
—adjective (-dē·it)
1. Divided or separated into rays; having rays; radiating.
2. Bot. Bearing rays or ray flowers.
3. Zool. Characterized by radial symmetry, as echinoderms and coelenterates.
4. Adorned with rays, as a head on a coin; radiated.
—noun (-dē·it)
1. An organism having radial symmetry.
2. A ray or raylike projection. [<L radiatus, pp. of radiare emit rays. See RADIANT.]
—ra′·di·a′tive adjective