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paraboloid
noun pa·rab·o·loid \pə-ˈra-bə-ˌlȯid\
Definition of PARABOLOID
: a surface all of whose intersections by planes are either parabolas and ellipses or parabolas and hyperbolas
— pa·rab·o·loi·dal \-ˌra-bə-ˈlȯi-dəl\ adjective
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First Known Use of PARABOLOID
circa 1702
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