irradiate.
Made brilliant or bright; irradiated, illuminated.
Meaning & usage
Made brilliant or bright; irradiated, illuminated.
Made splendid or wonderful.
Where this word comes from
From Middle English irradiate (“illuminated, shining”), borrowed from Medieval Latin irradiātus, perfect passive participle of irradiō, from ir- (“against; into; on, upon”) + radiō (“to cause to radiate, irradiate; to emit beams, radiate”), from radius (“ray of light; rod, staff; spoke of a wheel”) + -ō (first conjugation verb-forming suffix) (further etymology uncertain; possibly ultimately from Proto-Indo-European *reh₁t- (“beam; pole; post”)). The adjective is attested earlier than the verb. The English word is analysable as in- (“against; into; on, upon”) + radiate.
To send out (heat, light, or some other form of radiation) in the form of rays; to radiate.
To make (someone or something) bright by shining light on them or it; to brighten, to illuminate.
To apply radiation other than visible light to (someone or something). To treat (food) with ionizing radiation to destroy pathogens.
To apply radiation other than visible light to (someone or something). To treat (a patient, or a cancerous growth or tumour) with radiation.
To animate or enliven (one's mood, or soul or spirit).
To cause (one's face) to look beautiful, happy, or lively; to light up.
To decorate (a place) splendidly.
To enlighten (someone, their mind, etc.) intellectually or spiritually; to illuminate, to shed light on.
This book might irradiate your mind
To send out (something) as if in the form of rays; to diffuse, to radiate, to shed.
To influence (something) as if with rays of heat, light, etc.
To become bright; to brighten, to light up.
Often followed by on or upon: to emit rays of light; to shine.
To emit something other than light; to radiate.
To diverge or be sent out in the form of rays.
Where this word comes from
From Middle English irradiate (“illuminated, shining”) (more at etymology 1), see -ate (verb-forming suffix).
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Definitions, grammatical labels, IPA, etymology and examples: Wiktionary contributors, extracted by Kaikki / Wiktextract. Adapted under CC BY-SA 4.0. Selected fields and authored examples are shown; third-party quotations and audio are omitted. See contributor history.
Last enriched 2026-09-10. Definitions are in English. Romanizations are shown when supplied by the source; syllable estimates are omitted for unsupported scripts.