definitions

right triangle

noun

a triangle having a right angle (contrasted with oblique triangle).

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Nearby words

right tack, right testicular vein, right thoracic duct, right to choose, right to life, right triangle, right up one's alley, right ventricle, right ventricular failure, right ventricular opening, right whale

Origin of right triangle

First recorded in 1920–25
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

British Dictionary definitions for right triangle

right triangle

noun

US and Canadian a triangle one angle of which is a right angleAlso called (in Britain and certain other countries): right-angled triangle
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Science definitions for right triangle

right triangle

A triangle having a right angle.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

Culture definitions for right triangle

right triangle

A triangle that contains a right angle.

The New Dictionary of Cultural Literacy, Third Edition Copyright © 2005 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.