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radiate

American  
[rey-dee-eyt, rey-dee-it, -eyt] / ˈreɪ diˌeɪt, ˈreɪ di ɪt, -ˌeɪt /

verb (used without object)

radiated, radiating
  1. to extend, spread, or move like rays or radii from a center.

  2. to emit rays, as of light or heat; irradiate.

  3. to issue or proceed in rays.

  4. (of persons) to project or glow with cheerfulness, joy, etc..

    She simply radiates with good humor.


verb (used with object)

radiated, radiating
  1. to emit in rays; disseminate, as from a center.

  2. (of persons) to project (joy, goodwill, etc.).

adjective

  1. radiating from a center.

  2. having rays extending from a central point or part.

    a coin showing a radiate head.

  3. radiating symmetrically.

radiate British  

verb

  1. Also: eradiate.  to emit (heat, light, or some other form of radiation) or (of heat, light, etc) to be emitted as radiation

  2. (intr) (of lines, beams, etc) to spread out from a centre or be arranged in a radial pattern

  3. (tr) (of a person) to show (happiness, health, etc) to a great degree

"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

adjective

  1. having rays; radiating

  2. (of a capitulum) consisting of ray florets

  3. (of animals or their parts) showing radial symmetry

  4. adorned or decorated with rays

    a radiate head on a coin

"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

Other Word Forms

Etymology

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, -ate 1

Explanation

When something radiates, it sends out waves or rays. The sun radiates light and warmth. If your house has a radiator, that might help you remember this word, because the radiator radiates warmth. Radiating is a concept that applies to anything that emits rays or waves. People camping make a fire so it can radiate light and heat. Our bodies radiate some heat, but not nearly as much as something as hot as a stove. If a nuclear reactor is damaged, it could radiate dangerous nuclear energy — or radiation.

Keep Reading on Vocabulary.com

Vocabulary lists containing radiate

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

At the Radiate Windrush Festival in south London in June, there was one stall that didn't get much love and attention.

From BBC • Jul. 27, 2022

"Radiate love! That's what I'm all about," Wille said as he guided a visitor through the gallery.

From Los Angeles Times • Jul. 17, 2015

Some 450 people have been through leadership programmes initiated by Radar and the charity established a network of high flyers, Radiate, with the support of Lloyds bank.

From The Guardian • Aug. 20, 2012

The Vertebrate arises from the egg differently from the Articulate,—the Articulate differently from the Mollusk,—the Mollusk differently from the Radiate.

From The Atlantic Monthly, Volume 09, No. 51, January, 1862 by Various

The volume was "Every Man a King," by Orison Swett Marden, and the uncrowned monarch reading it was busy with the thirteenth chapter, to wit: "Thoughts Radiate as Influence."

From Plum Pudding Of Divers Ingredients, Discreetly Blended & Seasoned by Morley, Christopher