rock crab
noun
any of several crabs that live along rocky beaches, especially those of the genus Cancer, as C. irroratus, of the eastern coast of North America, having the rear legs modified for running.
Origin of rock crab
An Americanism dating back to 1830–40
Words nearby rock crab
rock chopper,
rock climb,
rock climbing,
rock cod,
rock cornish,
rock crab,
rock creek butte,
rock cress,
rock crystal,
rock cycle,
rock dove
Example sentences from the Web for rock crab
In the little hollows between rocks a rock-crab or a green-crab may be found on guard.