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Dictionary


tra•pe•zi•um



Pronunciation: (tru-pē'zē-um), [key]
n.,
pl. -zi•ums, -zi•aPronunciation: (-zē-u). [key]

1. Geom.
a. (in Euclidean geometry) any rectilinear quadrilateral plane figure not a parallelogram.
b. a quadrilateral plane figure of which no two sides are parallel.
c. Brit.trapezoid (def. 1a).
2. Anat.a bone in the wrist that articulates with the metacarpal bone of the thumb.

Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.

trapeziformtrapezius
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