Trun"ca*ted (?), a.
Cut off; cut short; maimed.
Replaced, or cut off, by a plane, especially when equally inclined to the adjoining faces; as, a truncated edge.
Lacking the apex; -- said of certain spiral shells in which the apex naturally drops off.
Truncated cone ∨ pyramid Geom., a cone or pyramid whose vertex is cut off by a plane, the plane being usually parallel to the base.
© Webster 1913.