an edible bluish Australian swimming crab, Portunus pelagicus
2. Australian informal
an Australian ten-dollar note
sand crab in American English
noun
any of several crabs that live on sandy beaches, as the ghost crab or mole crab
Word origin
[1835–45]This word is first recorded in the period 1835–45. Other words that entered Englishat around the same time include: cutaway, faceplate, grandstand, hot plate, hybridize