radiate

verb
ra·​di·​ate | \ ˈrā-dē-ˌāt How to pronounce radiate (audio) \
radiated; radiating

Definition of radiate

 (Entry 1 of 2)

intransitive verb

1 : to proceed in a direct line from or toward a center
2 : to send out rays : shine brightly
3a : to issue in or as if in rays
b : to evolve by adaptive radiation

transitive verb

1 : to send out in or as if in rays
3 : to spread abroad or around as if from a center

radiate

adjective
ra·​di·​ate | \ ˈrā-dē-ət How to pronounce radiate (audio) , -ˌāt\

Definition of radiate (Entry 2 of 2)

: having rays or radial parts: such as
a : having ray flowers
b : characterized by radial symmetry : radially symmetrical

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Other Words from radiate

Adjective

radiately adverb

Synonyms & Antonyms for radiate

Synonyms: Verb

branch, fan (out), ray

Antonyms: Verb

concentrate, converge, focus, funnel, meet

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Examples of radiate in a Sentence

Verb

The pain was radiating down my arm. The sun radiates heat and light. Heat radiates from the sun.
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Recent Examples on the Web: Verb

The thin, three-paneled applicator creates a half-moon shape to treat the abdomen and flanks simultaneously by radiating magnetic waves without ever touching the skin. Kaitlin Clark, Allure, "5 New Body-Contouring Procedures Plastic Surgeons Can't Stop Talking About," 9 July 2019 If an object is only radiating infrared light and not reflecting it at all, that would be an emissivity of 1. Rhett Allain, WIRED, "Should You Wear White or Black on Hot Days? Here's the Data," 9 July 2019 His smile is restrained, but his eyes radiate happiness. Kim Hjelmgaard, USA TODAY, "In news, when words fail, graphic and shocking photos often don't," 2 July 2019 There, cooled by radiating heat to space, rock vapor from the moon-forming synestia would have condensed to droplets of magma that rained down into its interior. Simon J. Lock, Scientific American, "When Earth and the Moon Were One," 2 July 2019 As Laurey, Rebecca Naomi Jones often stays still, radiating full-body tension and uncertainty beneath her outwardly pleasant exterior. Aja Romano, Vox, "The new Oklahoma! is a sexy, shocking revival for our times," 2 July 2019 The posh chill-girl vibe her feed radiates is tempting to duplicate. Jazmin Brooks, Essence, "Hey Curvy Girl! Follow These Fashionistas We Can't Get Enough Of," 23 June 2019 The Mexican strategy is a familiar one: Position checkpoints on the limited number of roads radiating north from the notoriously porous Guatemalan border, which stretches for about 600 miles along jungle, mountain and river terrain. San Diego Union-Tribune, "At Mexico’s southern border, migrants feel the pinch of a crackdown spurred by U.S.," 13 June 2019 Solar energy striking Earth is either reflected back into space or absorbed and then radiated back as heat. Kennedy Elliott, National Geographic, "See the drastic toll climate change is taking on our oceans," 7 June 2019

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'radiate.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of radiate

Verb

circa 1619, in the meaning defined at intransitive sense 1

Adjective

1668, in the meaning defined above

History and Etymology for radiate

Verb

Latin radiatus, past participle of radiare, from radius ray

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Statistics for radiate

Last Updated

14 Jul 2019

Look-up Popularity

Time Traveler for radiate

The first known use of radiate was circa 1619

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More Definitions for radiate

radiate

verb

English Language Learners Definition of radiate

: to go out in a direct line from a central point or area
: to move in a specified direction from a source
: to send out (something, such as heat or energy) in rays

radiate

verb
ra·​di·​ate | \ ˈrā-dē-ˌāt How to pronounce radiate (audio) \
radiated; radiating

Kids Definition of radiate

1 : to send out rays : shine The sun was radiating in the sky.
2 : to come forth in the form of rays Light radiates from shining bodies.
3 : to go out in a direct line from a center Spokes radiate from the center of the wheel.
4 : to spread around from or as if from a center Word radiated that Royce McNabb had sent Ina-Rae Gage a valentine.— Richard Peck, A Year Down Yonder
5 : to show very clearly She radiates confidence.

radiate

verb
ra·​di·​ate | \ ˈrād-ē-ˌāt How to pronounce radiate (audio) \
radiated; radiating

Medical Definition of radiate

 (Entry 1 of 2)

intransitive verb

: to issue in or as if in rays : spread from a central point back pain radiating to both upper legs— Tony Miksanek

radiate

adjective
ra·​di·​ate | \ ˈrād-ē-ət, -ē-ˌāt How to pronounce radiate (audio) \

Medical Definition of radiate (Entry 2 of 2)

1 : having rays or radial parts
2 : characterized by radial symmetry : radially symmetrical

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More from Merriam-Webster on radiate

Rhyming Dictionary: Words that rhyme with radiate

Thesaurus: All synonyms and antonyms for radiate

Spanish Central: Translation of radiate

Nglish: Translation of radiate for Spanish Speakers

Britannica English: Translation of radiate for Arabic Speakers

Comments on radiate

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