Word.ws English Dictionary

isosceles

/aɪˈsɒsəliːz/US/aɪˈsɑsəliz/

isosceles adjective: having (at least) two sides of equal length, used especially of a triangle or trapezoid.

isosceles: having (at least) two sides of equal length, used especially of a triangle or trapezoid
Image: Alexander Pavlov, Public domain, via Wikimedia Commons

Adjective

isosceles (not comparable)

  1. Having (at least) two sides of equal length, used especially of a triangle or trapezoid.
    • Upon each exterior side draw an Isosceles Triangle of 480 Fathoms.1693, Abel Swall, transl., The New Method of Fortification, as Practised by Monsieur de Vavban, Engineer General of France, 2nd edition, "A New Treatise of Fortification", page 96
    • A right double pyramid is isosceles when the extremities of the vertex-edge are at the same distance from the plane of the base.1914, Henry Parker Manning, Geometry of Four Dimensions, page 204

isosceles meaning in Hindi, Tamil and Tagalog

isosceles in Hindi

having two sides of equal length, used especially of an isosceles triangle or trapezoid
समद्विबाहु samdvibāhu

isosceles in Tamil

இருசமபக்க

isosceles in Tagalog

having two sides of equal length, used especially of an isosceles triangle or trapezoid
kaduhain

Examples of isosceles in a sentence

  • This is the isosceles quadrilateral with the two base angles right angles.1945, Harold E. Wolfe, Introduction to Non-Euclidean Geometry, page 31:
  • The polygon advantageously is an isosceles trapezoid or rectangle with the pivotal connections between the deck or superstructure and four hulls respectively at its corners.1965 April 8, Newton B. Dismukes, “Multihull vessels (Patent US3316873A)”, in Google Patents:
  • The flowers were stuck inside a flower pot that was shaped like an isosceles polygon with a rectangular "edge."2019 January 23, Altered Book Lover, “Funky Flowers”, in Blogspot:

Origin of isosceles

Borrowed from Latin īsoscelēs, from Ancient Greek ἰσοσκελής (isoskelḗs, “equal-legged”), from ἴσος (ísos, “equal”) + σκέλος (skélos, “leg”) + -ής (-ḗs, adjective suffix). See also iso-.

Words formed from isosceles

Phrases with isosceles

Questions about isosceles

What does isosceles mean?
Isosceles means having (at least) two sides of equal length, used especially of a triangle or trapezoid.
What is isosceles in Hindi?
Isosceles in Hindi is समद्विबाहु (samdvibāhu). See Isosceles meaning in Hindi.
How do you use isosceles in a sentence?
This is the isosceles quadrilateral with the two base angles right angles.
What part of speech is isosceles?
Isosceles is an adjective.
How do you pronounce isosceles?
Isosceles is pronounced /aɪˈsɒsəliːz/ (UK).

Words near isosceles in the dictionary

  1. isoscalars
  2. isoscaling
  3. isoscape
  4. isoscapes
  5. isoscelar
  6. isosceles
  7. isosceles trapezoid
  8. isosceles trapezoids
  9. isosceles triangle
  10. isosceles triangles
  11. isoschaftoside

Source and license

Adapted from Wiktionary: isosceles (page history and authors); isosceles (Tamil Wiktionary) (page history and authors). Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws reformatted the entry and added links. Wiktionary data of 2026-09-02.

Last updated:

Pronunciation audio from Wikimedia Commons, each file under its own free license: LL-Q1860 (eng)-Vealhurl-isosceles.wav.

Cite this entry: “isosceles.” Word.ws, https://word.ws/isosceles. Based on Wiktionary, CC BY-SA 4.0.