Definition of irradiate
2 : to emit like rays of light : radiate irradiating strength and comfort
archaic : to emit rays : shine
irradiativeplay \i-ˈrā-dē-ˌā-tiv\ adjective
irradiatorplay \i-ˈrā-dē-ˌā-tər\ noun
Examples of irradiate in a Sentence
The food was irradiated to kill any germs.
the light from a galaxy of flashing signs irradiates the heart and soul of Las Vegas
Recent Examples of irradiate from the Web
To keep them from being contaminated with modern genetic material, the researchers soaked bones and teeth in hydrochloric acid, irradiated them with ultraviolet light, sand-blasted them, and powdered them in liquid nitrogen.
These example sentences are selected automatically from various online news sources to reflect current usage of the word 'irradiate'. Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.
Origin and Etymology of irradiate
Latin irradiatus, past participle of irradiare, from in- + radius ray
First Known Use: 1603See Words from the same year
IRRADIATE Defined for English Language Learners
Definition of irradiate for English Language Learners
: to expose (someone or something) to radiation
IRRADIATE Defined for Kids
Definition of irradiate for Students
1 : to cast rays of light on
2 : to treat by exposure to radiation (as X-rays)
Medical Definition of irradiate
: to affect or treat by radiant energy (as heat); specifically : to treat by exposure to radiation (as ultraviolet light or gamma rays)
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