Definition of radians Radians
We found 3 definitions of radians from 2 different sources.
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What does radians mean?
Wiktionary 
- radians (Noun)
Plural of radian The angle subtended at the centre of a circle by an arc of the circle of the same length as the circle's radius.
Part of speech
🔤- radians, noun, plural of radian.
WordNet
NounPlural: radians |
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| radian - the unit of plane angle adopted under the Systeme International d'Unites; equal to the angle at the center of a circle subtended by an arc equal in length to the radius (approximately 57.295 degrees) | ||
| rad | ||
| angular unit a unit of measurement for angles | ||
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Wiktionary
Webster DictionaryWebster's Unabridged Dictionary 📘
- radian (n.)
An arc of a circle which is equal to the radius, or the angle measured by such an arc.
OmegaWiki DictionaryOmegaWiki Dictionary Ω
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radian
A unit of plane angle with symbol "rad".
Chambers DictionaryChamber's 20th Century Dictionary 📕
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radian
rā′di-an, n. the angle subtended at the centre of a circle by an arc equal to the radius
Electrical DictionaryThe Standard Electrical Dictionary 💡
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radian
The angle whose arc is equal in length to the radius; the unit angle.
Wikipedia 
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A radian is a unit of measuring angles. It is shown by the symbol "rad" or, less often, c (for circular measure). The radian was once an SI unit, but was done away with in 1995.
Who uses radians?
Most people who do mathematics or physics use radians, rather than degrees, because some kinds of calculations are simpler when using radians rather than degrees.
A "milliradian" is 1/1000 of a radian.
People who look through a telescope or rifle scope often use milliradians to describe distances as seen through the 'scope.
Part of speech
🔤- radian, noun, singular of radians.
