radiateRA'DIATE, v.i. [L. radio. See Ray.] RA'DIATE, v.t. To enlighten; to illuminate; to shed light or brightness on. [Usually irradiate.] RA'DIATE, a. In botany, a rayed or radiate corol or flower, is a compound flower consisting of a disk, in which the corollets or florets are tubular and regular, and of a ray, in which the florets are irregular. |