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

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.

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

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.

radian

radian

radian

radian - Computer Definition

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Words near radian in the dictionary

radian

radian

radian

radian - Computer Definition

Sentence Examples

Also Mentioned In

Words near radian in the dictionary

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