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hypotenuse

[hahy-pot-n-oos, -yoos] /haɪˈpɒt nˌus, -ˌyus/
noun, Geometry.
1.
the side of a right triangle opposite the right angle.
Also, hypothenuse.
Origin of hypotenuse
1565-1575
1565-75; earlier hypotenusa < Latin hypotēnūsa < Greek hypoteínousa (grámmē) subtending (line) (feminine present participle of hypoteínein to subtend), equivalent to hypo- hypo- + tein- stretch (see thin) + -ousa feminine present participle suffix
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2017.
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Examples from the Web for hypotenuse
Historical Examples
  • Therefore the square on the hypotenuse must equal the sum of these two squares.

    The Teaching of Geometry David Eugene Smith
  • A, walking from corner to corner, may be said to diangulate the hypotenuse of the meadow.

    My Discovery of England Stephen Leacock
  • The area of a right triangle is 150 square feet, and its hypotenuse is 25 feet.

    A Review of Algebra Romeyn Henry Rivenburg
  • Each of the other sides is the mean proportional between the hypotenuse and the segment of the hypotenuse adjacent to that side.

    The Teaching of Geometry David Eugene Smith
  • If we take away the other two triangles instead, we have left the square on the hypotenuse.

    The Teaching of Geometry David Eugene Smith
  • The square on the hypotenuse of a right triangle is equivalent to the sum of the squares on the other two sides.

    The Teaching of Geometry David Eugene Smith
  • The perpendicular is the mean proportional between the segments of the hypotenuse.

    The Teaching of Geometry David Eugene Smith
  • You cannot write a text-book of geometry without reference to a hypotenuse and triangles and a rectangular parallelopiped.

    The Story of Mankind Hendrik Van Loon
  • It usually takes a hypotenuse a long time to discover that it is the longest side of a triangle.

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    O. Henry
  • He left it to his family as part of his estate, the rest of which consisted of two mules and a hypotenuse of non-arable land.

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    O. Henry
British Dictionary definitions for hypotenuse

hypotenuse

/haɪˈpɒtɪˌnjuːz/
noun
1.
the side in a right-angled triangle that is opposite the right angle hyp
Word Origin
C16: from Latin hypotēnūsa, from Greek hupoteinousa grammē subtending line, from hupoteinein to subtend, from hypo- + teinein to stretch
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
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Word Origin and History for hypotenuse
n.

1570s, from Late Latin hypotenusa, from Greek hypoteinousa "stretching under" (the right angle), fem. present participle of hypoteinein, from hypo- "under" (see sub-) + teinein "to stretch" (see tenet). Formerly often erroneously hypothenuse.

Online Etymology Dictionary, © 2010 Douglas Harper
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hypotenuse in Science
hypotenuse
  (hī-pŏt'n-s')   
The side of a right triangle opposite the right angle. It is the longest side, and the square of its length is equal to the sum of the squares of the lengths of the other two sides.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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hypotenuse in Culture
hypotenuse [(heye-pot-n-oohs, heye-pot-n-yoohs)]

In a right triangle (a triangle that has one right angle), the side opposite the right angle. (See Pythagorean theorem.)

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