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

On Sunday, Keyla’s living room altar radiated with color. Los Angeles Times, oregonlive.com, "Remembering Keyla, 13, the bullied girl with autism, gunned down at Gilroy Garlic Festival," 11 Aug. 2019 The dust that absorbs starlight must heat up and radiate at longer infrared wavelengths, which Wang, Elbaz, and colleagues could look for. Adrian Cho, Science | AAAS, "Galaxy hunters spot hidden giants in the early universe," 7 Aug. 2019 Feeling good has to come from inside and radiate outside. Halley Bondy, NBC News, "How to rock your outfit at any size, with Gravitas' Lisa Sun," 16 July 2019 Belinda Landu, a tall 28-year-old with long hair who radiates confidence, was making a meager living as a tailor in capital city Kinshasa before the outbreak. Sally Hayden, Time, "Inside the Battle to Save Congo From the Ebola Crisis," 19 June 2019 The huge open legs In this scene, Ariana danced beneath a pair of open legs that had golden light radiating behind them. Lauren Rearick, Teen Vogue, "Ariana Grande's "God Is a Woman" Music Video Is Full of Vagina References," 13 July 2018 On a good day, Leos are warm, generous, and compassionate lovers who radiate their positive energy toward their partners. Aliza Kelly Faragher, Allure, "What Your Zodiac Sign Says About Your Worst Relationship Habit," 14 May 2018 In addition, radiating equiangular lines would pass through the surface of a surrounding sphere at equidistant points. Quanta Magazine, "A New Path to Equal-Angle Lines," 11 Apr. 2017 The Leonids seem to radiate from the constellation Leo, the Perseids from the constellation Perseus, the Geminids from Gemini and so on. NBC News, "Meteor showers: What they are and how to watch them," 2 Aug. 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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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