I. ˈkōˌnȯid, ˈkäˌn- noun
( -s )
Etymology: Greek kōnoeides small cone, from neuter of kōnoeidēs, adjective
1. mathematics : a surface generated by a straight line that is perpendicular to and intersects a fixed straight line l, is revolved about l, and at the same time is translated along l
2. : something that has a conoidal form (as a rifle bullet)
II. adjective
Etymology: Greek kōnoeidēs conical, from kōn- con- (II) + -oeidēs -oid
: shaped like or nearly like a cone : conoidal