trapezoid

trap·e·zoid Audio Help (trāp'ĭ-zoid')

A quadrilateral having two parallel sides.
A small bone in the wrist, situated near the base of the index finger.

[New Latin trapezoīdēs, from Greek trapezoeidēs, trapezium-shaped : trapeza, table; see trapezium + -oeidēs, -oid.]
trap'e·zoid', trap'e·zoi'dal (-zoid'l) adj.

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