hypersphere

[ hahy-per-sfeer, hahy-per-sfeer ]
/ ˈhaɪ pərˌsfɪər, ˌhaɪ pərˈsfɪər /

noun Mathematics.

the generalization of a sphere to more than three dimensions.

Origin of hypersphere

First recorded in 1965–70; hyper- + sphere
Related formshy·per·spher·i·cal [hahy-per-sfer-i-kuh l] /ˌhaɪ pərˈsfɛr ɪ kəl/, adjective
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019