Trapezium
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The term trapezium can mean more than one thing:
- In human anatomy, trapezium is a bone in the hand
- In geometry, a trapezium is also a name for a class of quadrilaterals. The precise definition differs between American English and British English, as described in that article; see also trapezoid.
- In astronomy, a grouping of four young stars (an open cluster) and the associated gas in the Orion Nebula. [1] (http://www.ast.cam.ac.uk/HST/press/aas97D.html)
- In theatre, a play by Henry Rathvon