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diagonal

[ dahy-ag-uh-nl, -ag-nl ]
/ daɪˈæg ə nl, -ˈæg nl /
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See synonyms for: diagonal / diagonals / diagonally on Thesaurus.com

adjective
noun
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Origin of diagonal

First recorded in 1535–45; from Latin diagōnālis, from Greek diagṓn(ios) “from angle to angle” + Latin -ālis adjective suffix; see dia-, -gon, -al1

OTHER WORDS FROM diagonal

di·ag·o·nal·ly, adverbnon·di·ag·o·nal, adjective, nounnon·di·ag·o·nal·ly, adverb
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2022

How to use diagonal in a sentence

British Dictionary definitions for diagonal

diagonal
/ (daɪˈæɡənəl) /

adjective
noun

Derived forms of diagonal

diagonally, adverb

Word Origin for diagonal

C16: from Latin diagōnālis, from Greek diagōnios, from dia- + gōnia angle
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

Scientific definitions for diagonal

diagonal
[ dī-ăgə-nəl ]

Adjective
Connecting two nonadjacent corners in a polygon or two nonadjacent corners in a polyhedron that do not lie in the same face.
Noun
A diagonal line segment.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
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