Trigonometric Function Like Tangent

This page is the CodyCross answer for the clue below from World of Sounds, Group 1349, Puzzle 2 (Music Therapy).

Question is: Trigonometric Function Like Tangent

and the answer is: COSINE

Word Meaning:

COSINE — (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

Definitions from Wiktionary.