oblique circular cone

noun Geometry.

a cone whose surface is generated by lines joining a fixed point to the points of a circle, the fixed point lying on a line that is not perpendicular to the circle at its center.

Compare right circular cone.

Origin of oblique circular cone

probably earlier than 1950–55

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018