Definition of mangrove crab in US English:

mangrove crab

noun

  • 1Any of various small grapsoid crabs found in mangrove swamps of the West Indies and tropical America.

  • 2Australian the mud crab, Scylla serrata, a large edible swimming crab found in mangrove swamps of the Indo-Pacific.

Origin

Mid 18th century; earliest use found in Patrick Browne (c1720–1790), physician and botanist.