# sine

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Related to sine: trigonometry, sine qua non, Inverse sine, Sine formula, Sine cosine tangent, Sine table

## sine

(sīn)*n.*

*Abbr.*

**sin**

**1.**The ordinate of the endpoint of an arc of a unit circle centered at the origin of a Cartesian coordinate system, the arc being of length

*x*and measured counterclockwise from the point (1, 0) if

*x*is positive or clockwise if

*x*is negative.

**2.**In a right triangle, the ratio of the length of the side opposite an acute angle to the length of the hypotenuse.

[Medieval Latin sinus (mistranslation of Arabic jayb,

*sine*, as if jayb,*fold in a garment*), from Latin,*curve, fold*.]American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

## sine

(saɪn)(of an angle)

*n* (Mathematics)

**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

[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]## sine

(ˈsaɪnɪ)*prep*

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

Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014

## sine

(saɪn)*n.*

a fundamental trigonometric function that, in a right triangle, is expressed as the ratio of the length of the side opposite an acute angle to the length of the hypotenuse.

*Abbr.:*sin[1585–95; < New Latin, Latin

*sinus*curve, fold, pocket, translation of Arabic*jayb*literally, pocket]Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.

## sine

(sīn) The ratio of the length of the side opposite an acute angle in a right triangle to the length of the hypotenuse.

The American Heritage® Student Science Dictionary, Second Edition. Copyright © 2014 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

ThesaurusAntonymsRelated WordsSynonyms

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Noun | 1. | sine - ratio of the length of the side opposite the given angle to the length of the hypotenuse of a right-angled trianglecircular function, trigonometric function - function of an angle expressed as a ratio of the length of the sides of right-angled triangle containing the angle |

Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.

Translations

**sinus**

**sinus**

**sini**

**サイン**

**正弦**

**sinus**

**正弦**

Collins Spanish Dictionary - Complete and Unabridged 8th Edition 2005 © William Collins Sons & Co. Ltd. 1971, 1988 © HarperCollins Publishers 1992, 1993, 1996, 1997, 2000, 2003, 2005

Collins English/French Electronic Resource. © HarperCollins Publishers 2005

## sine

Collins German Dictionary – Complete and Unabridged 7th Edition 2005. © William Collins Sons & Co. Ltd. 1980 © HarperCollins Publishers 1991, 1997, 1999, 2004, 2005, 2007

Collins Italian Dictionary 1st Edition © HarperCollins Publishers 1995

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