Definitions for COSINE

• Definition
• Anagrams (117)

COSINE co·sine

Spelling: [koh-sahyn]

IPA: /ˈkoʊ saɪn/

Cosine is a 6 letter English word. It's valid Scrabble word worth 8 points. It's valid Words with friends word worth 10 points.

You can make 117 anagrams from letters in COSINE (ceinos).

Definitions for COSINE

noun

1. Trigonometry. (in a right triangle) the ratio of the side adjacent to a given angle to the hypotenuse. the sine of the complement of a given angle or arc. Abbreviation: cos.
2. Mathematics. (of a real or complex number x) the function cos x defined by the infinite series 1 − (x 2 /2!) + (x 4 /4!) − + …, where ! denotes factorial. Abbreviation: cos. Compare sine (def 3), factorial (def 1).

Origin of COSINE

1625-35; New Latin cosinus. See co-, sine

Examples for COSINE

Like the functions sine and cosine, the elliptic functions have addition theorems, e.g.

Here then was the sine of an arc which did not recognize equality in the cosine of its supplement.

Integrators were of three kinds: radius machines; cosine machines; tangent machines.

Nevertheless, I bear no grudge against the sine and the cosine, which I continue to hold in high esteem.

And, seating himself beside Dirrik, he began to explain the mysteries of sine, cosine and tangent.

Multiply this by the cosine of the angle and divide by the sine, and we shall get the value of the arc QY for the equator.

The sine and the cosine I shall have occasion to employ in the latter part of my lecture.

These are then respectively the sine and cosine of the angle α between the radius and one of the axes (O X).