Definition of mud crab in English:

mud crab

noun

  • 1A crab of the brachyuran genus Panopeus.

  • 2A large edible swimming crab, Scylla serrata, of Indo-Pacific mangrove swamps (also called mangrove crab).

Origin

Early 18th century; earliest use found in James Petiver (c1665–1718), botanist and entomologist.