co·noid /ˈkoˌnɔɪd/
(a.)圓錐形的,尖圓的圓錐體
co·noid /koˈnɔɪdḷ/ 形容詞
錐形的
Co·noid a. Resembling a cone; conoidal.
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Co·noid n.
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.
conoid
n : a shape whose base is a circle and whose sides taper up to a
point [syn: cone, cone shape]