hypotenuse
noun
- longest side of a right-angled triangle, the side opposite of the right angle
Wiktionary
Pronunciation: /haɪˈpɒtənjuːz/ / [haɪˈpɒʔn̩juːz] / /haɪˈpɑtənus/
noun
Etymology: From Latin hypotenusa, from Ancient Greek ὑποτείνουσα πλευρά (hupoteínousa pleurá, “side subtending [the right angle]”), from ὑποτείνουσα (hupoteínousa, “stretching, extending, subtending”), active participle of ὑποτείνω (hupoteínō, “subtend, stretch under”).
- The side of a right triangle opposite the right angle.