Irradiation

блеск

blesk

(obsolete: illumination; irradiance; brilliance)

излуче́ние

izlučénije

(an act of irradiating, or state of being irradiated)

лучеза́рность

lučezárnostʹ

(obsolete: illumination; irradiance; brilliance)

лучи́стость

lučístostʹ

(obsolete: illumination; irradiance; brilliance)

облуче́ние

oblučénije

(an act of irradiating, or state of being irradiated)

освеще́ние

osveščénije

(obsolete: illumination; irradiance; brilliance)

сия́ние

sijánije

(obsolete: illumination; irradiance; brilliance)