||Ra`di*a"ta (-"t), n. pl. [NL., fr. radiatus, p. p. See Radiate.]
||(Zoöl.) An extensive artificial group of invertebrates, having all
||the parts arranged radially around the vertical axis of the body, and
||the various organs repeated symmetrically in each ray or spheromere.
It includes the cœlenterates and the echinoderms. Formerly, the group
was supposed to be a natural one, and was considered one of the grand
divisions of the animal kingdom.
Ra"di*ate (r"d*t), v. i. [imp. & p. p. Radiated (- `td); p. pr. & vb.
n. Radiating.] [L. radiatus, p. p. of radiare to furnish with spokes or
rays, to radiate, fr. 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.
Ra"di*ate, v. t. 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. [R.]
Ra"di*ate (-t), a. [L. radiatus, p. p.] 1. Having rays or parts
diverging from a center; radiated; as, a radiate crystal.
2. (Bot.) Having in a capitulum large ray florets which are unlike the
disk florets, as in the aster, daisy, etc.