Webster's Revised Unabridged Dictionary · 1913

Radiate

Radiate (rā"di*āt) , intransitive verb

[Latin radiatus, past participle of radiare to furnish with spokes or rays, to radiate, from radius ray. See Radius, Ray a divergent line.]

1.
To emit rays; to be radiant; to shine.
Virtues shine more clear In them [kings], and radiate like the sun at noon. — Howell
2.
To proceed in direct lines from a point or surface; to issue in rays, as light or heat.
Light radiates from luminous bodies directly to our eyes. — Locke

Radiate , transitive verb

1.
To emit or send out in direct lines from a point or points; as, to radiate heat.
2.
To enlighten; to illuminate; to shed light or brightness on; to irradiate. [Rare]

Radiate (rā"di*at) , adjective

[Latin radiatus, p. p.]

1.
Having rays or parts diverging from a center; radiated; as, a radiate crystal.
2.
(Botany) Having in a capitulum large ray florets which are unlike the disk florets, as in the aster, daisy, etc.
3.
(Zoology) Belonging to the Radiata.

Radiate , noun

(Zoology) One of the Radiata.