v. （用辐射）照射；使生辉，焕发；照亮，使发光（irradiate 的现在分词）

Irradiate \Ir*ra"di*ate\ ([i^]r*r[=a]"d[i^]*[=a]t), v. t. [imp.
& p. p. {Irradiated} ([i^]r*r[=a]"d[i^]*[=a]`t[e^]d); p. pr.
& vb. n. {Irradiating} ([i^]r*r[=a]"d[i^]*[=a]`t[i^]ng).] [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[,c]ade, . . . irradiating hospitality.
--H. James.

5. To expose to radiation of any kind, especially {ionizing
radiation}; as, to sterilize food by irradiating it with
gamma rays; one can cause mutations in bacteria by
irradiating them with ultraviolet light.
[PJC]