I. “+ adjective
Etymology: Latin irradiatus, past participle
: made bright with or as if with light : illuminated
a countenance irradiate with love
II. “+ verb
( -ed/-ing/-s )
Etymology: Latin irradiatus, past participle of irradiare, from in- in- (II) + radiare to radiate — more at radiate
transitive verb
1.
a. : to throw rays of light upon : shine upon : illuminate , brighten
moonlight irradiating the placid water
b. : to enlighten intellectually or spiritually : make clear or brilliant
wisdom irradiated his counsel
c. : to affect or treat by radiant heat or other radiant energy ; specifically : to treat by exposure to radiation (as of ultraviolet light or radium)
2. : to send forth like rays of light : radiate , shed , diffuse
irradiating strength and comfort
intransitive verb
1. archaic : to emit rays : shine
2. archaic : to issue in rays