Irradiate Ir*ra"di*ate ([i^]r*r[=a]"d[i^]*[=a]t), v. t. [imp. & p. p. {Irradiated} ([i^]r*r[=a]"d[i^]*[=a]`t[e^]d); p. pr. & vb. n. {Irradiating} ([i^]r*r[=a]"d[i^]*[=a]`t[i^]ng).] [L. irradiatus, p. p. of irradiate. See {In-} in, and {Radiate}.] [1913 Webster] 1. To throw rays of light upon; to illuminate; to brighten; to adorn with luster. [1913 Webster]

Thy smile irradiates yon blue fields. --Sir W. Jones. [1913 Webster]

2. To enlighten intellectually; to illuminate; as, to irradiate the mind. --Bp. Bull. [1913 Webster]

3. To animate by heat or light. --Sir M. Hale. [1913 Webster]

4. To radiate, shed, or diffuse. [1913 Webster]

A splendid fa[,c]ade, . . . irradiating hospitality. --H. James. [1913 Webster]

5. To expose to radiation of any kind, especially {ionizing radiation}; as, to sterilize food by irradiating it with gamma rays; one can cause mutations in bacteria by irradiating them with ultraviolet light. [PJC]

The Collaborative International Dictionary of English. 2000.

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  • irradiate — ir*ra di*ate, v. i. To emit rays; to shine. [1913 Webster] …   The Collaborative International Dictionary of English

  • irradiate — ir*ra di*ate ([i^]r*r[=a] d[i^]*[asl]t), a. [L. irradiatus, p. p.] Illuminated; irradiated. Mason. [1913 Webster] …   The Collaborative International Dictionary of English

  • irradiate — index radiate, spread Burton s Legal Thesaurus. William C. Burton. 2006 …   Law dictionary

  • irradiate — (v.) c.1600, to cast beams of light upon, from L. irradiatus, pp. of irradiare shine forth, from assimilated form of in into, in (see IN (Cf. in ) (2)) + radiare to shine (see RADIATE (Cf. radiate)). Meaning expose to radiation other than light… …   Etymology dictionary

  • irradiate — ► VERB 1) (often be irradiated) expose to radiation. 2) shine light on. DERIVATIVES irradiation noun. ORIGIN Latin irradiare shine upon , from radius ray …   English terms dictionary

  • irradiate — [ir rā′dēāt΄, i rā′dēāt΄; ] for adj., usually [, i rā′dēit] vt. irradiated, irradiating [< L irradiatus, pp. of irradiare, to beam upon, illumine: see IN 1 & RADIATE] 1. to shine or throw light upon; light up; make bright 2. to make clear;… …   English World dictionary

  • irradiate — UK [ɪˈreɪdɪeɪt] / US [ɪˈreɪdɪˌeɪt] verb [transitive] Word forms irradiate : present tense I/you/we/they irradiate he/she/it irradiates present participle irradiating past tense irradiated past participle irradiated 1) a) science to treat food… …   English dictionary

  • irradiate — 1. verb a) To throw rays of light upon; to illuminate; to brighten; to adorn with luster. Thy smile irradiates yon blue fields. Sir W. Jones. b) To …   Wiktionary

  • irradiate — verb ( ated; ating) Etymology: Latin irradiatus, past participle of irradiare, from in + radius ray Date: 1603 transitive verb 1. a. to cast rays of light upon ; illuminate b. to enlighten intellectually or spiritually …   New Collegiate Dictionary

  • irradiate — irradiatingly, adv. irradiative, adj. irradiator, n. v. /i ray dee ayt /; adj. /i ray dee it, ayt /, v., irradiated, irradiating, adj. v.t. 1. to shed rays of light upon; illuminate. 2. to illumine intellectually or spiritually. 3. to brighten as …   Universalium

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