frustum Meaning, Definition & Usage

  1. noun a truncated cone or pyramid; the part that is left when a cone or pyramid is cut by a plane parallel to the base and the apical part is removed

WordNet

Frus"tum noun
Etymology
L. fruslum piece, bit.
Wordforms
plural L Frusta E Frustums
Definitions
  1. (Geom.) The part of a solid next the base, formed by cutting off the, top; or the part of any solid, as of a cone, pyramid, etc., between two planes, which may be either parallel or inclined to each other.
  2. (Arch.) One of the drums of the shaft of a column.

Webster 1913