radial

adjective
ra·​di·​al | \ ˈrā-dē-əl How to pronounce radial (audio) \

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 How to pronounce radial (audio) \ adverb

Examples of radial in a Sentence

Adjective the radial form of a starfish
Recent Examples on the Web: Adjective Lines accreted in an essentially radial configuration, with large arcs orbiting an absent central axis, and orthogonal spokes sprouting from the core. Jason Farago, New York Times, "Julie Mehretu’s Long Journey Home," 25 Mar. 2021 Twin Wasp 14-cylinder radial engines produce 1200 hp each, providing thrust enough to lift 20-plus passengers and baggage or a 6,000-plus pound cargo load. Eric Tegler, Popular Mechanics, "Why the DC-3 Is Such a Badass Plane," 16 Mar. 2021 Nottingham progressing Another player coming off an injury suffered at the end of last season is catcher Jacob Nottingham, who is still recovering from late-December surgery on the radial collateral ligament in his left thumb. Todd Rosiak, Milwaukee Journal Sentinel, "Devin Williams confident he'll be ready for season despite slow ramp-up in Brewers camp," 5 Mar. 2021 Both options are threaded and include a radial muzzle brake. Tyler Freel, Outdoor Life, "The 10 Best New Rifles for 2021," 1 Mar. 2021 The threaded muzzle comes with an effective 360-degree radial muzzle brake attached, and the rifle uses AI-style detachable, three-round magazines rather than the rotary magazine used on other Ruger American models. Mike Dickerson, Field & Stream, "14 Lightweight Hunting Rifles For Every Budget," 18 Feb. 2021 Fischer’s high-precision EXPRES radial velocity spectrograph—and an even more advanced European counterpart, ESPRESSO—are both already operational. Lee Billings, Scientific American, "Is It a Planet? Astronomers Spy Promising Potential World around Alpha Centauri," 10 Feb. 2021 With a radial arm saw, simply clamp a stopblock to the fence so that the distance from it to the blade equals the length of the finished leg. Neal Barrett, Popular Mechanics, "Make a Kitchen Table That Will Last Generations," 14 Nov. 2020 Inside, a black Blodgett oven, two radial phones and cash registers from the 1950s all share space with more modern appliances, including a credit card chip reader. Los Angeles Times, "Coronavirus Today: A very different Thanksgiving," 25 Nov. 2020 Recent Examples on the Web: Noun Instead only the most distal ones are homologous to digit bones; the proximal radials are homologous to the wrist bones and the long bones of the palm. John A. Long, Scientific American, "How a 380-Million-Year-Old Fish Gave Us Fingers," 20 May 2020 Enter the panda’s pseudo-thumb, which is also composed of an enlarged radial sesamoid and cartilaginous extension, and is controlled by the same three muscles as in the aye-aye. National Geographic, "This bizarre primate has a newly discovered digit," 21 Oct. 2019 Andretti first credits the slicks, and then changing from a cross-ply construction to radials. Tim Newcomb, Popular Mechanics, "Gaining Speed: A History of the Indy 500 Racing Tire," 24 May 2019 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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Last Updated

7 Apr 2021

Cite this Entry

“Radial.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/radial. Accessed 7 May. 2021.

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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 How to pronounce radial (audio) \

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 How to pronounce radial (audio) \ 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

More from Merriam-Webster on radial

Nglish: Translation of radial for Spanish Speakers

Britannica English: Translation of radial for Arabic Speakers

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