paraboloid

[ puh-rab-uh-loid ]
/ pəˈræb əˌlɔɪd /

noun Geometry.

a surface that can be put into a position such that its sections parallel to at least one coordinate plane are parabolas.
Compare elliptic paraboloid, hyperbolic paraboloid.

Origin of paraboloid

First recorded in 1650–60; parabol(a) + -oid

OTHER WORDS FROM paraboloid

pa·rab·o·loi·dal [puh-rab-uh-loid-l, par-uh-buh-] /pəˌræb əˈlɔɪd l, ˌpær ə bə-/, adjective

Words nearby paraboloid

parabolic, parabolic aerial, parabolic antenna, parabolic mirror, parabolize, paraboloid, parabrake, parabulia, paracasein, paracel islands, paracelsus

Example sentences from the Web for paraboloid

British Dictionary definitions for paraboloid

paraboloid
/ (pəˈræbəˌlɔɪd) /

noun

a geometric surface whose sections parallel to two coordinate planes are parabolic and whose sections parallel to the third plane are either elliptical or hyperbolic. Equations x ²/ a ² ± y ²/ b ² = 2 cz

Derived forms of paraboloid

paraboloidal, adjective

Scientific definitions for paraboloid

paraboloid
[ pə-răb′ə-loid′ ]

A surface having parabolic sections parallel to a single coordinate axis and elliptic sections perpendicular to that axis.