oyster crab oyster catcher • oyster cracker · · · Info · Definitions · Synonyms · Characters · · oyster crab · · Text Common · · Latin · · Scripts 11 · · Length 4 · · Syllables Definitions · · · (noun) tiny soft-bodied crab living within the mantle cavity of oysters. Synonyms: oyster crab, Pinnotheres ostreum. · · Noun Definition 1 Synonyms · · · pinnotheres ostreum · · Synonym 1 Characters · · space U+0020 a latin small letter a U+0061 b latin small letter b U+0062 c latin small letter c U+0063 e latin small letter e U+0065 o latin small letter o U+006F r latin small letter r U+0072 s latin small letter s U+0073 t latin small letter t U+0074 y latin small letter y U+0079