frustum

• POS: Noun
• HYPHEN: frus=tum

CIDE DICTIONARY

frustum, n. [L. fruslum piece, bit.].

•  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]
•  One of the drums of the shaft of a column.  [1913 Webster]

OXFORD DICTIONARY

frustum, n. (pl. frusta or frustums) Geom.
1 the remainder of a cone or pyramid whose upper part has been cut off by a plane parallel to its base.
2 the part of a cone or pyramid intercepted between two planes.

Etymology

L, = piece cut off

ROGET THESAURUS

frustum

Part

N part, portion, dose, item, particular, aught, any, division, ward, subdivision, section, chapter, clause, count, paragraph, verse, article, passage, sector, segment, fraction, fragment, cantle, frustum, detachment, parcel, piece, lump, bit cut, cutting, chip, chunk, collop, slice, scale, lamina, small part, morsel, particle, installment, dividend, share, debris, odds and ends, oddments, detritus, excerpta, member, limb, lobe, lobule, arm, wing, scion, branch, bough, joint, link, offshoot, ramification, twig, bush, spray, sprig, runner, leaf, leaflet, stump, component part, sarmentum, compartment, department, county, fractional, fragmentary, sectional, aliquot, divided, in compartments, multifid, disconnected, partial, partly, in part, partially, piecemeal, part by part, by by installments, by snatches, by inches, by driblets, bit by bit, inch by inch, foot by foot, drop by drop, in detail, in lots.