ir·ra·di·ate [ i ráydee àyt ](past and past participleir·ra·di·at·ed, present participleir·ra·di·at·ing, 3rd person present singularir·ra·di·ates)
verb
Definition:
1. transitive verb expose somebody or something to radiation: to expose somebody to or treat somebody or something with radiation or streams of particles
2. transitive verb preserve food: to treat food with electromagnetic radiation to kill microorganisms and slow down the process of ripening and gradual deterioration or rotting
3. transitive verb light something up: to make something brighter by shining light onto it
4. transitive verb make something intelligible: to make something intellectually clear
5. transitive and intransitive verb physics Same as radiatev (sense 1)
[Early 17th century. < Latin irradiat-, past participle of irradiare "illumine" < radius "ray"]
