Definition of cosecant in English:

cosecant

Line breaks: co|se¦cant
Pronunciation: /kəʊˈsiːk(ə)nt
 
, -ˈsɛk-/

noun

Mathematics
  • The ratio of the hypotenuse (in a right-angled triangle) to the side opposite an acute angle; the reciprocal of sine.
    More 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.

Origin

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

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