Transcription
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- US Pronunciation
- US IPA
- UK Pronunciation
- UK IPA
-
- [rey-dee-uh n]
- /ˈreɪ di ən/
- /ˈreɪ·di·ən/
-
- US Pronunciation
- US IPA
-
- [rey-dee-uh n]
- /ˈreɪ di ən/
Definitions of radian word
- noun radian the measure of a central angle subtending an arc equal in length to the radius: equal to 57.2958°. Abbreviation: rad. 1
- noun radian A unit of angle, equal to an angle at the center of a circle whose arc is equal in length to the radius. 1
- noun radian an SI unit of plane angle; the angle between two radii of a circle that cut off on the circumference an arc equal in length to the radius. 1 radian is equivalent to 57.296 degrees and π/2 radians equals a right angle 0
- noun radian 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 2π radians 0
- noun radian The radian is the plane angle between two radii of a circle that cut off on the circumference an arc equal in length to the radius. 0
Information block about the term
Origin of radian
First appearance:
before 1875 One of the 25% newest English words
First recorded in 1875-80; radi(us) + -an
Historical Comparancy
Parts of speech for Radian
noun
adjective
verb
adverb
pronoun
preposition
conjunction
determiner
exclamation
radian popularity
A common word. It’s meaning is known to most children of preschool age. About 78% of English native speakers know the meaning and use the word.
Most Europeans know this English word. The frequency of it’s usage is somewhere between "mom" and "screwdriver".
radian usage trend in Literature
This diagram is provided by Google Ngram ViewerTop questions with radian
- what is a radian?
- how much is a radian?
- how to find radian measure?
- how to find radian?
- how many degrees in a radian?
- what is radian?
- how many degrees are in a radian?
- what is one radian?
- how many degrees is one radian?
- how to convert degree to radian?
- how many degrees in one radian?
- how to convert radian to degrees?
- what is a radian measure?
- what is 1 radian?
- what is radian measure?
See also
Matching words
- Words starting with r
- Words starting with ra
- Words starting with rad
- Words starting with radi
- Words starting with radia
- Words starting with radian