triangle
Use Triangle in a sentence
gəl noun
1.
a closed plane figure having three sides and three angles.
2.
a flat triangular piece, usually of plastic, with straight edges, used in connection with a T square for drawing perpendicular lines, geometric figures, etc.
3.
any three-cornered or three-sided figure, object, or piece: a triangle of land.
4.
a musical percussion instrument that consists of a steel triangle, open at one corner, that is struck with a steel rod.
5.
a group of three; triad.
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2013.
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Based on the Random House Dictionary, © Random House, Inc. 2013.
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|
Link To triangle
00:10
Triangle
is always a great word to know.
So is doohickey. Does it mean:
| a gadget; dingus; thingumbob. |
| a chattering or flighty, light-headed person. |
Collins
World English Dictionary
triangle (ˈtraɪˌæŋɡəl) ![[Click for IPA pronunciation guide]](http://static.sfdict.com/dictstatic/g/d/dictionary_questionbutton_default.gif) | |
| —n | |
| 1. | geometry a three-sided polygon that can be classified by angle, as in an acute triangle, or by side, as in an equilateral triangle. Sum of interior angles: 180°; area: ½ base × height |
| 2. | any object shaped like a triangle |
| 3. | See also eternal triangle any situation involving three parties or points of view |
| 4. | music a percussion instrument consisting of a sonorous metal bar bent into a triangular shape, beaten with a metal stick |
| 5. | a group of three |
| [C14: from Latin triangulum (noun), from triangulus (adjective), from | |
| 'triangled | |
| —adj | |
Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
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2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
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Etymonline
Word Origin & History
triangle
late 14c., from O.Fr. triangle (13c.), from L. triangulum "triangle," from neut. of adj. triangulus "three-cornered," from tri- "three" + angulus "corner, angle." Triangulation is recorded from 1818.
"In the huts of witches all the instruments and implements are triangular." ["Handwörterbuch des deutschen Aberglaubens"]
Online Etymology Dictionary, © 2010 Douglas Harper
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American Heritage
Medical Dictionary
triangle tri·an·gle (trī'āng'gəl)
n.
A three-sided area, space, or structure.
The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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American Heritage
Science Dictionary
| triangle (trī'āng'gəl) Pronunciation Key
A closed geometric figure consisting of three sides. |
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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American Heritage
The American Heritage® Dictionary of Idioms by Christine Ammer.
Copyright © 1997. Published by Houghton Mifflin.
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Copyright © 1997. Published by Houghton Mifflin.
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Example sentences
She needs some rhinoceros triangle to go with her blue ink.
Arrange the woody pieces in a triangle one stem to the right one to the left and one across then tuck in flowers.
Press down to create a pouch in the end of the plastic triangle.
Cut out two triangles for the ears and one triangle for the beak, then attach with glue.
Idioms & Phrases
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