hard-shell crab
noun
1.
a crab, especially an edible crab, that has not recently molted and has a hard shell.
Origin
1900-05
British Dictionary definitions for
hard-shell crab
hard-shell crab
noun
1.
a crab, esp of the edible species
Cancer pagurus,
that has not recently moulted and therefore has a hard shell
Compare
soft-shell crab