helix

== English == === Etymology === From Latin helix, from Ancient Greek ἕλιξ (hélix, “something twisted or spiral”). === Pronunciation === IPA(key): /ˈhiːlɪks/ Rhymes: -iːlɪks Rhymes: -ɪks === Noun === helix (plural helixes or helices) (mathematics) A curve on the surface of a cylinder or cone such that its angle to a plane perpendicular to the axis is constant; the three-dimensional curve seen in a screw or a spiral staircase. (architecture) A small volute under the abacus of a Corinthian capital. (anatomy) The incurved rim of the external ear. An upside down midair 360° spin in playboating. ==== Synonyms ==== (curve): spiral (not in technical use) ==== Derived terms ==== ==== Related terms ==== helicopter ==== Translations ==== === Verb === helix (third-person singular simple present helixes, present participle helixing, simple past and past participle helixed) To form or cause to form a helix. ==== Derived terms ==== === See also === left-handed right-handed spiral == Dutch == === Etymology === Borrowed from Latin helix, from Ancient Greek ἕλιξ (hélix). === Pronunciation === IPA(key): /ˈɦeː.lɪks/ Hyphenation: he‧lix === Noun === helix f (plural helices or helixen, no diminutive) helix Synonym: schroeflijn == Latin == === Etymology === Borrowed from Ancient Greek ἕλιξ (hélix). === Pronunciation === (Classical Latin) IPA(key): [ˈhɛ.lɪks] (modern Italianate Ecclesiastical) IPA(key): [ˈɛː.liks] === Noun === helix f (genitive helicis); third declension a kind of ivy a kind of willow a whorl, a small ornament on the capital of Corinthian columns ==== Declension ==== Third-declension noun. ==== Descendants ==== === References === “helix”, in Charlton T. Lewis and Charles Short (1879), A Latin Dictionary, Oxford: Clarendon Press “helix”, in Gaffiot, Félix (1934), Dictionnaire illustré latin-français, Hachette. == Romanian == === Etymology === Borrowed from French hélix. === Noun === helix n (plural helixuri) helix ==== Declension ====