English Explanatory Dictionary

cotangent

English dictionary entry

Meanings

noun
  1. In a right triangle, the reciprocal of the tangent of an angle. Symbols: cot, ctg, or ctn

Pronunciation

'kōtănjənt /ˈkoʊˌtænd͡ʒənt/ LL-Q1860 (eng)-Flame, not lame-cotangent.wav

Word forms

cotangent cotangents

Etymology

Etymology tree Proto-Indo-European *ḱe Proto-Indo-European *ḱóm Proto-Italic *kom Proto-Italic *kom- Latin con- Latin co-der. English co- Proto-Indo-European *teh₂g- Proto-Italic *tangō Latin tangō Latin tangēns Latin tangentembor. English tangent English cotangent From co- + tangent.

Derived words

arc cotangent cothangent hyperbolic cotangent
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