# Definition of sine

### Definitions

noun (of an angle)

a. a trigonometric function that in a right-angled triangle is the ratio of the length of the opposite side to that of the hypotenuse

b. a function that in a circle centred at the origin of a Cartesian coordinate system is the ratio of the ordinate of a point on the circumference to the radius of the circle

Abbreviation: sinCollins English Dictionary. Copyright © Harper Collins Publishers

### Word origin of 'sine'

C16: from Latin sinus a bend; in New Latin, sinus was mistaken as a translation of Arabic jiba sine (from Sanskrit jīva, literally: bowstring) because of confusion with Arabic jaib curve### Definitions

preposition

(esp in Latin phrases or legal terms) lacking; without

Collins English Dictionary. Copyright © Harper Collins Publishers

### Example sentences containing 'sine'

It would not be too many stages before it vanished altogether and a bathroom would become a sine qua non for our future happiness. GOODBYE CURATEGiving up one's freedom is, paradoxically, the sine qua non of proceeding on the path to liberation. THE BOOK OF THE DIE## Trends of 'sine'

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## Source

*Definition of*Collins English Dictionary

**sine**from the
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