[verb ih-rey-dee-eyt; adjective ih-rey-dee-it, -eyt] /verb ɪˈreɪ diˌeɪt; adjective ɪˈreɪ di ɪt, -ˌeɪt/
verb (used with object), irradiated, irradiating.
to shed rays of light upon; illuminate.
to illumine intellectually or spiritually.
to brighten as if with light.
to radiate (light, illumination, etc.).
to heat with radiant energy.
to treat by exposure to radiation, as of ultraviolet light.
to expose to radiation.
verb (used without object), irradiated, irradiating.
(transitive) (physics) to subject to or treat with light or other electromagnetic radiation or with beams of particles
(transitive) to expose (food) to electromagnetic radiation to kill bacteria and retard deterioration
(transitive) to make clear or bright intellectually or spiritually; illumine
a less common word for radiate (sense 1)
(intransitive) (obsolete) to become radiant
c.1600, “to cast beams of light upon,” from Latin irradiatus, past participle of irradiare “shine forth,” from assimilated form of in- “into, in” (see in- (2)) + radiare “to shine” (see radiate). Meaning “expose to radiation other than light” (originally X-rays) is from 1901. Related: Irradiated; irradiating.
irradiate ir·ra·di·ate (ĭ-rā’dē-āt’)
v. ir·ra·di·at·ed, ir·ra·di·at·ing, ir·ra·di·ates
To expose to or treat with radiation. For example, meat sold as food is often irradiated with x-rays or other radiation to kill bacteria; uranium 238 can be irradiated with neutrons to create fissionable plutonium 239.
[ih-rad-i-kuh-buh l] /ɪˈræd ɪ kə bəl/ adjective 1. . adj. 1728, from ir- “not” + radicable.
[ih-rash-uh-nl] /ɪˈræʃ ə nl/ adjective 1. without the faculty of reason; deprived of reason. 2. without or deprived of normal mental clarity or sound judgment. 3. not in accordance with reason; utterly illogical: irrational arguments. 4. not endowed with the faculty of reason: irrational animals. 5. Mathematics. 6. Algebra. (of an equation) having an unknown […]
[ih-rash-uh-nal-i-tee] /ɪˌræʃ əˈnæl ɪ ti/ noun, plural irrationalities for 2. 1. the quality or condition of being . 2. an , illogical, or absurd action, thought, etc. /ɪˌræʃəˈnælɪtɪ/ noun 1. the state or quality of being irrational 2. irrational thought, action, or behaviour n. 1560s, from irrational + -ity.
[ih-rash-uh-nl-ahyz] /ɪˈræʃ ə nlˌaɪz/ verb (used with object), irrationalized, irrationalizing. 1. to make or cause to be .