The definition of a trapezoid is a shape with four sides, only two of which are parallel.(noun)
An example of a trapezoid is the base of a pyramid when the top is flat and there is not a point.
See trapezoid in Webster's New World College Dictionary
Origin: ModL trapezoides < Gr trapezoeides, shaped like a trapezoid: see trapezium & -oid
See trapezoid in American Heritage Dictionary 4
Origin: New Latin trapezoīdēs
Origin: , from Greek trapezoeidēs, trapezium-shaped
Origin: : trapeza, table; see trapezium
Origin: + -oeidēs, -oid.
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