Definition of hypotenuse in English:

hypotenuse

noun

  • The longest side of a right-angled triangle, opposite the right angle.

    • ‘In case you have forgotten your high school geometry, the hypotenuse is the side opposite the right angle.’
    • ‘The square of the length of the hypotenuse of a right triangle is equal to the sum of the squares of the legs.’
    • ‘In fact it is the length of the hypotenuse of a right angled triangle which had sides of length one.’
    • ‘Can we have any other Pythagorean triangles with a Fibonacci number as the hypotenuse (the longest side)?’
    • ‘He sees the hypotenuse of a right triangle made by the deck, the mast and the front edge of the beam moving down to the deck.’

Origin

Late 16th century: via Latin hypotenusa from Greek hupoteinousa (grammē) ‘subtending (line)’, from the verb hupoteinein (from hupo ‘under’ + teinein ‘stretch’).

Pronunciation

hypotenuse

/hʌɪˈpɒtənjuːs//hʌɪˈpɒtənjuːz/