Truncated

a.
  1. Cut off; cut short; maimed.
  2. (Min.) Replaced, or cut off, by a plane, especially when equally inclined to the adjoining faces; as, a truncated edge.
  3. (Zoöl.) Lacking the apex; -- said of certain spiral shells in which the apex naturally drops off.
    4. Truncated cone or Truncated pyramid (Geom.),
    a cone or pyramid whose vertex is cut off by a plane, the plane being usually parallel to the base.