radial

adjective
ra·​di·​al | \ˈrā-dē-əl \

Definition of radial 

(Entry 1 of 2)

1 : arranged or having parts arranged like rays

2a : relating to, placed like, or moving along a radius

b : characterized by divergence from a center

3 : of, relating to, or adjacent to a bodily radius

4 : developing uniformly around a central axis

radial

noun

Definition of radial (Entry 2 of 2)

1a : a radial part

b : ray

2 : a body part (such as an artery) lying near or following the course of the radius

3 : a pneumatic tire in which the ply cords that extend to the beads are laid at approximately 90 degrees to the centerline of the tread

called also radial-ply tire, radial tire

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Other Words from radial

Adjective

radially \ ˈrā-​dē-​ə-​lē \ adverb

Examples of radial in a Sentence

Adjective

the radial form of a starfish

Recent Examples on the Web: Adjective

The technique of watching stars wobble, known as the radial velocity method, was used to find some of the first exoplanets about 20 years ago. Jay Bennett, Popular Mechanics, "Three Newborn Planets Discovered Around an Infant Star," 13 June 2018 Another method currently used to find exoplanets, called radial velocity, relies on measuring how much an object's gravity tugs on its home star. John Wenz, Popular Mechanics, "One of the Three Closest Stars Looks Friendly for Life," 6 June 2018 If Mauna Loa was not already present, Kilauea would likely have developed a third radial rift zone aimed toward this huge neighbor. Wendell Duffield, Scientific American, "How Kilauea’s Lava Invades Neighborhoods," 8 May 2018 Shoemaker, who made only 14 starts last season because of a radial nerve compression in the forearm, aggravated the injury in his first regular-season start this season and has been sidelined since. Mike Digiovanna, latimes.com, "Shoemaker's rehab shut down after pitcher feels discomfort in surgically repaired nerve," 11 May 2018 Most cars today are front- or or even all-wheel drive, and even today's big rear-drive iron has a better weight distribution and way better radial all-season tires. Mike Allen, Popular Mechanics, "Debunking 5 Cold-Weather Car Myths," 15 May 2018 The new release offers measurements of that sideways motion for all 1.3 billion stars, plus radial velocities for 7 million of the brightest ones. Joshua Sokol, Science | AAAS, "One of the Milky Way’s fastest stars is an invader from another galaxy," 8 May 2018 This cross section of a mouse spinal cord, from 1899, shows radial glia cells, the Rodney Dangerfields of brain cells. Sharon Begley, STAT, "In ‘Beautiful Brain,’ the secrets of neurons emerge in Nobel-winning scientist’s ink and pencil drawings," 3 May 2018 The data also include the radial velocities—the motions toward or away from Earth—of seven million stars. Jeremy Hsu, Scientific American, "Stellar Effort: Chart of the Milky Way Includes More Than 1 Billion Stars," 24 Apr. 2018

Recent Examples on the Web: Noun

There’s a sort of radial set up to the room, that big gem in the middle was basically a topper on a giant, carpeted wedding cake, which seemed the ideal architecture for some sort of romantic ritual. Lucy Boyle, The Cut, "Farewell to the Most Sparkly Sacred Place in New York," 30 Oct. 2017 The bias ply is easier to retread while the radial is lighter. John Cox, USA TODAY, "Ask the Captain: How pilots respond to a blown tire," 22 Oct. 2017 Line lock helps the driver warm the rear drag radials, a special air-conditioning circuit chills the intercooler, and a trans brake makes for easy launches and helps the Demon perform the briefest of wheelies. Car and Driver, "New Cars for 2018: Chrysler, Dodge, and Ram," 10 Oct. 2017 The car comes on four drag radials, but the eight-speed ZF 8HP automatic turns only the rear wheels. K.c. Colwell, Car and Driver, "2018 Dodge Challenger SRT Demon," 20 July 2017 Of the more interesting highlights, a few involve the car’s specialized Nitto drag radials. Davey G. Johnson, Car and Driver, "Dodge Demands Owners Sign Waiver When Ordering Demon," 23 June 2017

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'radial.' 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 radial

Adjective

1570, in the meaning defined at sense 1

Noun

1872, in the meaning defined at sense 1a

History and Etymology for radial

Adjective

Medieval Latin radialis, from Latin radius ray

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Statistics for radial

Last Updated

24 Oct 2018

Look-up Popularity

Time Traveler for radial

The first known use of radial was in 1570

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More Definitions for radial

radial

adjective

English Language Learners Definition of radial

 (Entry 1 of 2)

: arranged or having parts arranged in straight lines coming out from the center of a circle

radial

noun

English Language Learners Definition of radial (Entry 2 of 2)

: a type of strong tire in which cords underneath the rubber run across the tire's surface

radial

adjective
ra·​di·​al | \ˈrād-ē-əl \

Medical Definition of radial 

(Entry 1 of 2)

1 : arranged or having parts arranged like rays

2 : of, relating to, or situated near the radius or the thumb side of the hand or forearm the radial aspect of the hand

3 : developing uniformly around a central axis radial cleavage of an egg

Other Words from radial

radially \ -​ē-​ə-​lē \ adverb

radial

noun

Medical Definition of radial (Entry 2 of 2)

: a body part (as an artery) lying near or following the course of the radius

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More from Merriam-Webster on radial

Spanish Central: Translation of radial

Nglish: Translation of radial for Spanish Speakers

Britannica English: Translation of radial for Arabic Speakers

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