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.
... problem. Hansen made use of the mode of suspension exhibited in Fig. 3. Mr. Worms, in a series of experiments carried out at King's College, London, adopted a somewhat similar arrangement, but in place of the hemispherical segment he employed a conoid, as shown in Fig. 4, and a socket was provided in which the conoid could work freely. From some experiments I made myself a score of years ago, I am inclined to prefer a plane surface for the conoid to work upon. Care must ... — Scientific American Supplement, No. 447, July 26, 1884 • Various
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