English-Thai Dictionary
frustum
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Webster's 1828 Dictionary
FRUSTUM
n.[L. See Frustrate. ] a piece or part of a solid body separated from the rest. The frustum of a cone, is the part that remains after the top is cut off by a plane parallel to the base; called otherwise a truncated cone.
Webster's 1913 Dictionary
FRUSTUM
Frus "tum, n.; pl. L. Frusta, E. Frustums. Etym: [L. fruslum piece, bit. ]
1. (Geom.)
Defn: 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. )
Defn: One of the drums of the shaft of a column.
New American Oxford Dictionary
frustum
frus tum |ˈfrəstəm ˈfrəstəm | ▶noun ( pl. frusta |-tə | or frustums ) Geometry the portion of a cone or pyramid that remains after its upper part has been cut off by a plane parallel to its base, or that is intercepted between two such planes. ORIGIN mid 17th cent.: from Latin, ‘piece cut off. ’
Oxford Dictionary
frustum
frustum |ˈfrʌstəm | ▶noun ( pl. frusta |-tə | or frustums ) Geometry the portion of a cone or pyramid which remains after its upper part has been cut off by a plane parallel to its base, or which is intercepted between two such planes. ORIGIN mid 17th cent.: from Latin, ‘piece cut off ’.
The Wordsmith Dictionary