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Paraboloid - Dictionary Definition and Overview |
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Paraboloid : (noun)
1: a surface having parabolic sections parallel to a single
coordinate axis and elliptic sections perpendicular to
that axis
Based on WordNet 2.0
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Paraboloid : \Pa*rab"o*loid\ (-loid), n. [Parabola _ -oid: cf. F.
parabolo["i]de.] (Geom.)
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.
Based on Webster's Revised Unabridged Dictionary
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Conoid \Co"noid\, n. [Gr. ? conical; ? cone _ ? from: cf. F.
cono["i]de.]
1. Anything that has a form resembling that of a cone.
2. (Geom.)
(a) A solid formed by the revolution of a conic section
about its axis; as, a parabolic conoid, elliptic
conoid, etc.; -- more commonly called paraboloid,
ellipsoid, etc.
(b) A surface which may be generated by a straight line
moving in such a manner as always to meet a given
straight line and a given curve, and continue parallel
to a given plane. --Math. Dict.
Based on Webster's Revised Unabridged Dictionary (1913)
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