sin θ =
a/c
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 WordsSynonymsLegend:
| Noun | 1. | sine - ratio of the length of the side opposite the given angle to the length of the hypotenuse of a right-angled triangle circular 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
n (Math) → Sinus m
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