noun Date: 1756 a tiny crab ( Pinnotheres ostreum ) that lives as a commensal in the gill cavity of the oyster
OYSTER CRAB
Meaning of OYSTER CRAB in English
Merriam Webster. Explanatory English dictionary Merriam Webster. Толковый словарь английского языка Мерриам-Уэбстер. 2012