PARABOLOID

paraboloid

(noun) a surface having parabolic sections parallel to a single coordinate axis and elliptic sections perpendicular to that axis

Source: WordNet® 3.1

Etymology

Noun

paraboloid (plural paraboloids)

(mathematics) A surface having a parabolic cross section parallel to an axis, and circular or elliptical cross section perpendicular to the axis; especially the surface of revolution of a parabola.

Hypernyms

• quadric surface, quadric

Source: Wiktionary

Pa*rab"o*loid, n. Etym: [Parabola + -oid: cf. F. paraboloïde.] (Geom.)

Definition: The solid generated by the rotation of a parabola about its axis; any surface of the second order whose sections by planes parallel to a given line are parabolas.

Note: The term paraboloid has sometimes been applied also to the parabolas of the higher orders. Hutton.

Source: Webster’s Unabridged Dictionary 1913 Edition

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