hyperboloid.
A particular surface in three-dimensional Euclidean space, the graph of a quadratic with all three variables squared and their coefficients not all of the same sign.
Meaning & usage
A particular surface in three-dimensional Euclidean space, the graph of a quadratic with all three variables squared and their coefficients not all of the same sign.
Where this word comes from
Etymology tree Proto-Indo-European *úp Proto-Indo-European *-er Proto-Indo-European *upér Proto-Hellenic *hupér Ancient Greek ῠ̔πέρ (hŭpér) Ancient Greek ὑπερ- (huper-) Proto-Indo-European *gʷelH-der. Proto-Hellenic *gʷəlnō Ancient Greek βάλλω (bállō) Ancient Greek ὑπερβάλλω (huperbállō) Proto-Indo-European *-h₂ Proto-Indo-European *-éh₂ Proto-Hellenic *-ā́ Ancient Greek -ᾱ (-ā) Ancient Greek -η (-ē) Ancient Greek ὑπερβολή (huperbolḗ)bor. New Latin hyperbolabor. 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 Proto-Hellenic *-ēs Ancient Greek -ης (-ēs) Ancient Greek -ειδής (-eidḗs) Latin -oīdēslbor. English -oid English hyperboloid From hyperbola + -oid.
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Definitions, grammatical labels, IPA, etymology and examples: Wiktionary contributors, extracted by Kaikki / Wiktextract. Adapted under CC BY-SA 4.0. Selected fields and authored examples are shown; third-party quotations and audio are omitted. See contributor history.
Last enriched 2026-09-10. Definitions are in English. Romanizations are shown when supplied by the source; syllable estimates are omitted for unsupported scripts.