frustum

2 definitions found

frustum - Collaborative International Dictionary of English v.0.48 :

  Frustum \Frus"tum\, n.; pl. L. Frusta, E. Frustums. [L.
     fruslum piece, bit.]
     [1913 Webster]
     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.
        [1913 Webster]
  
     2. (Arch.) One of the drums of the shaft of a column.
        [1913 Webster]

frustum - WordNet (r) 2.1 (2005) :

  frustum
      n 1: 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