radiate

[ verb rey-dee-eyt; adjective rey-dee-it, -eyt ]
/ verb ˈreɪ diˌeɪt; adjective ˈreɪ di ɪt, -ˌeɪt /

verb (used without object), ra·di·at·ed, ra·di·at·ing.

verb (used with object), ra·di·at·ed, ra·di·at·ing.

to emit in rays; disseminate, as from a center.
(of persons) to project (joy, goodwill, etc.).

adjective

Origin of radiate

First recorded in 1610–20, radiate is from the Latin word radiātus (past participle of radiāre to radiate light, shine). See radiant, -ate1

Related forms

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for radiate

British Dictionary definitions for radiate

radiate


verb (ˈreɪdɪˌeɪt)

Also: eradiate to emit (heat, light, or some other form of radiation) or (of heat, light, etc) to be emitted as radiation
(intr) (of lines, beams, etc) to spread out from a centre or be arranged in a radial pattern
(tr) (of a person) to show (happiness, health, etc) to a great degree

adjective (ˈreɪdɪɪt, -ˌeɪt)

Word Origin for radiate

C17: from Latin radiāre to emit rays
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Medicine definitions for radiate

radiate

[ rādē-āt′ ]

v.

To spread out in all directions from a center.
To emit or be emitted as radiation.

Related forms

radi•a′tive adj.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.