Meaning of right circular cone

right' cir'cular cone'

Pronunciation: [key]
— Geom. Geom.
  1. a cone whose surface is generated by lines joining a fixed point to the points of a circle, the fixed point lying on a perpendicular through the center of the circle. Cf.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.