radian

ra·di·an

the basic unit of plane angle in the SI system, equal to 57° 17? 44.8? (57.29578°, the angle formed at the center of a circle by two radii cutting off an arc whose length is equal to the radius of the circle): one degree equals 0.017454 radian and 360 degrees equals 2? radians: abbrev. rad

Origin of radian

from radius

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"radian." YourDictionary, n.d. Web. 17 August 2018. <http://www.yourdictionary.com/radian>.

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radian. (n.d.). Retrieved August 17th, 2018, from http://www.yourdictionary.com/radian

radian

noun

Abbr. rad

A unit of angular measure equal to the angle subtended at the center of a circle by an arc equal in length to the radius of the circle, approximately 57°17&minute;44.6&second;.

Origin of radian

radi(us) -an ¹

radian

When the length of an arc of a circle is equal to the radius of the circle, the angle subtended by that arc equals one radian.

THE AMERICAN HERITAGE® DICTIONARY OF THE ENGLISH LANGUAGE, FIFTH EDITION by the Editors of the American Heritage Dictionaries. Copyright © 2016, 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

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MLA Style

"radian." YourDictionary, n.d. Web. 17 August 2018. <http://www.yourdictionary.com/radian>.

APA Style

radian. (n.d.). Retrieved August 17th, 2018, from http://www.yourdictionary.com/radian

Noun

(plural radians)

(geometry) In the International System of Units, the derived unit of plane angular measure of angle equal to the angle subtended at the centre of a circle by an arc of its circumference equal in length to the radius of the circle. Symbol: rad

Origin

From radi(us) + -an

English Wiktionary. Available under CC-BY-SA license.

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MLA Style

"radian." YourDictionary, n.d. Web. 17 August 2018. <http://www.yourdictionary.com/radian>.

APA Style

radian. (n.d.). Retrieved August 17th, 2018, from http://www.yourdictionary.com/radian

radian - Computer Definition

From the Latin radius. A unit of plane angular measurement equivalent to the angle between two radii that enclose a section of a circle's circumference (arc) equal in length to the length of a radius.There are 2 radians in a circle. See also frequency and radius.

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Link to this page

Cite this page

MLA Style

"radian." YourDictionary, n.d. Web. 17 August 2018. <http://www.yourdictionary.com/radian>.

APA Style

radian. (n.d.). Retrieved August 17th, 2018, from http://www.yourdictionary.com/radian

radian

radian

radian - Computer Definition

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radian

radian

radian - Computer Definition

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Words near radian in the dictionary

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