\Ir*ra"di*ate\, v. t. [imp. & p. p. {Irradiated}; p.
pr. & vb. n. {Irradiating}.] [L. irradiatus, p. p. of
irradiate. See {In-} in, and {Radiate}.]
1. To throw rays of light upon; to illuminate; to brighten;
   to adorn with luster.
         Thy smile irradiates yon blue fields. --Sir W.
                                               Jones.
2. To enlighten intellectually; to illuminate; as, to
   irradiate the mind. --Bp. Bull.
3. To animate by heat or light. --Sir M. Hale.
4. To radiate, shed, or diffuse.
         A splendid fa?ade, . . . irradiating hospitality.
                                               --H. James.

\Ir*ra"di*ate\, v. i.
To emit rays; to shine.

\Ir*ra"di*ate\, a. [L. irradiatus, p. p.]
Illuminated; irradiated. --Mason.