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cosecant Line breaks: co|se¦cant
Pronunciation: /kəʊˈsiːk(ə)nt/

Definition of cosecant in English:


The ratio of the hypotenuse (in a right-angled triangle) to the side opposite an acute angle; the reciprocal of sine.
Example sentences
  • The other angle, B has its tanglent equal to its cosecant (the reciprocal of the sine).
  • The variance of D is computed from the variance of the misclosure W scaled with the separation of the planes of position dv and the cosecant of the angle of maximum inclination of the slope dd.
  • The secant and cosecant were not used by the early astronomers or surveyors.


Early 18th century: from modern Latin cosecant-, from co- 'mutually' + Latin secant- 'cutting' (from the verb secare). Compare with secant.

Definition of cosecant in:
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