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

Keep scrolling for more

Other Words from radiate

Adjective

radiately adverb

Synonyms & Antonyms for radiate

Synonyms: Verb

branch, fan (out), ray

Antonyms: Verb

concentrate, converge, focus, funnel, meet

Visit the Thesaurus for More 

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.
See More

Recent Examples on the Web: Verb

At every cafe, in the rough stone buildings of every city center, crowds radiated out from large screens, leaning in, waiting for plausible excuses to scream. Sam Anderson, New York Times, "New Sentences: From ‘What We Think About When We Think About Soccer’," 5 July 2018 Tracks radiated out from San Antonio to Houston and New Orleans, Corpus Christi, Laredo, El Paso and all the way west to Los Angeles, Kerrville, Austin, Fort Worth, Dallas, Oklahoma, Kansas, Arkansas and Missouri. From Express-news Archives, San Antonio Express-News, "After railroad arrived in 1877, S.A. became important crossroad," 19 Feb. 2018 His kind spirit radiated throughout the clubhouse as a player & a coach. Jeff Sanders, sandiegouniontribune.com, "Longtime Padres coach Picciolo dies; 'just loved the game of baseball'," 5 Jan. 2018 Beyoncé topped off the ensemble with the collection’s matching oversized hat and a pair of Giuseppe Zanotti silver sandals, radiating confidence and the star quality that won her accolades in the first place. Vogue, "Beyoncé Has a Couture Fashion Moment at the NAACP Awards," 1 Apr. 2019 In space, there is no convection; everything has to be radiated. Chris Lee, Ars Technica, "Edge on cooling from nanostructure beats physical limit," 11 Sep. 2018 The result: Light seems to radiate from within the figure of Saint Jerome, rather than having been applied to it. Christopher Knight, latimes.com, "Out of the shadows and into the light: 'Chiaroscuro Woodcut' is a sleeper hit at LACMA," 5 July 2018 With that said, women are more likely to experience lesser known symptoms of a heart attack, like shortness of breath, nausea, vomiting, fatigue, and pain that radiates into the back, shoulders, and jaw. Cassie Shortsleeve, SELF, "When to Go to Urgent Care Vs. the ER," 16 Feb. 2019 Friendly relations with a stable Africa are critical to U.S. economic and military interests, lest poverty and political dysfunction radiate instability through mass emigration or security threats. The Editorial Board, WSJ, "Countering Russia and China in Africa," 13 Dec. 2018

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.

See More

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

Keep scrolling for more

Learn More about radiate

Statistics for radiate

Last Updated

5 May 2019

Look-up Popularity

Time Traveler for radiate

The first known use of radiate was circa 1619

See more words from the same year

Keep scrolling for more

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

Keep scrolling for more

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

What made you want to look up radiate? Please tell us where you read or heard it (including the quote, if possible).

WORD OF THE DAY

incapable of being surmounted or overcome

Get Word of the Day daily email!

Test Your Vocabulary

Finance Words Quiz

  • a-piggy-bank
  • The etymology of mortgage is related most closely to which two words?
Spell It

Can you spell these 10 commonly misspelled words?

TAKE THE QUIZ
SCRABBLE® Sprint

Test Your Knowledge - and learn some interesting things along the way.

TAKE THE QUIZ
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!