pisiform Pisidium • pisiform bone · · · Info · Definitions · Synonyms · Characters · · pisiform · · Text Latin · · Script 8 · · Length 3 · · Syllables Definitions · · · (noun) a small wrist bone that articulates only with the triquetral. Synonyms: pisiform bone, os pisiforme. · · Noun Definition 1 Synonyms · · · pisiform bone · · Synonym 1 os pisiforme · · Synonym 2 Characters · · f latin small letter f U+0066 i latin small letter i U+0069 m latin small letter m U+006D o latin small letter o U+006F p latin small letter p U+0070 r latin small letter r U+0072 s latin small letter s U+0073