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Webster 1913 Edition


Cosine

Co′sine

(k?′s?n)
,
Noun.
[For
co
.
sinus
, an abbrev. of L.
complementi sinus
.]
(Trig.)
The sine of the complement of an arc or angle. See Illust. of
Functions
.

Definition 2023


cosine

cosine

English

Cosine function

Noun

cosine (plural cosines)

  1. (trigonometry) In a right triangle, the ratio of the length of the side adjacent to an acute angle to the length of the hypotenuse. Symbol: cos

Usage notes

In various branches of mathematics, the cosine of an angle is determined in various ways, including the following:

Related terms

Translations

See also

Anagrams


Italian

Noun

cosine f

  1. plural of cosina

Anagrams


Old French

Noun

cosine f (oblique plural cosines, nominative singular cosine, nominative plural cosines)

  1. (female) cousin

Declension

Descendants