trapezium trapezist • trapezium bone · · · Info · Definitions · Synonyms · Antonyms · Characters · · trapezium · · Text Latin · · Script 9 · · Length 4 · · Syllables Definitions · · · (noun) a quadrilateral with no parallel sides. · · Noun Definition 1 (noun) a multiple star in the constellation of Orion. Synonyms: Trapezium. · · Noun Definition 2 (noun) the wrist bone on the thumb side of the hand that articulates with the 1st and 2nd metacarpals. Synonyms: trapezium bone, os trapezium. · · Noun Definition 3 Synonyms · · · trapezium bone · · Synonym 1 os trapezium · · Synonym 2 Antonyms · · · parallelogram · · Antonym 0 Characters · · a latin small letter a U+0061 e latin small letter e U+0065 i latin small letter i U+0069 m latin small letter m U+006D p latin small letter p U+0070 r latin small letter r U+0072 t latin small letter t U+0074 u latin small letter u U+0075 z latin small letter z U+007A