11 letters · 22 points in Scrabble
noun a quadric surface generated by rotating a hyperbola around its main axis
originEtymology tree English hyperbola Ancient Greek -ο- (-o-)der. Latin -o- Proto-Indo-European *weyd- Proto-Indo-European *-os Proto-Indo-European *wéydos Proto-Hellenic *wéidos Ancient Greek εἶδος (eîdos) Proto-Indo-European *-os Proto-Indo-European *-ēs Ancient Greek -ης (-ēs) Ancient Greek -ειδής (-eidḗs) Latin -oīdēslbor. English -oid English hyperboloid From hyperbola + -oid.
Etymology from Wiktionary, CC BY-SA 3.0