синус

Etymology
Scientific term, ultimately from.

Noun

 * 1)  sine ratio between the length of an opposite side to the length of the hypotenuse in a right-angle triangle
 * 2)  sinus sac or cavity in a tissue or an organ

Etymology
Borrowed from, from.

Noun

 * 1)  sine
 * 2)  sinus

Noun

 * 1)  sine
 * 2)  sinus

Noun

 * 1)  sine
 * 2)  sinus