A crab is a water-dwelling creature, a decapod crustacean of the infraorder Brachyura. A related common meaning is crab meat. Crab may also refer to: Other animals Anomura, an infraorder containing hermit crabs, king crabs, and other animals that is a sister group to the true crabs (infraorder Brachyura) Horseshoe crab, a chelicerate that lays its eggs on beaches and is utilized by the biomedical industry Mythology Cancer (astrology), a sign in the zodiac Cancer (Chinese astronomy) Science Cancer (constellation), a stellar constellation Crab Nebula, the supernova remnant found in the constellation Taurus Crab Pulsar, the central star in the Crab Nebula Crab (unit), photometrical unit of X-ray astronomy CRAB, an abbreviation for the symptoms of multiple myeloma "Crabs", a colloquial term for Pediculosis pubis Crab louse (Pthirus pubis), a type of parasitic louse Technology Crab (cipher), an encryption algorithm based on MD5 Crab landing, a method of landing a fixed-wing aircraft in a crosswind Geography Crab, Virginia, an unincorporated community Crab Brook, a tributary of Stony Brook in central New Jersey Crab Creek, in the U.S. state of Washington Crab Creek (Little River), in North and South Carolina Crab Run (Mahanoy Creek), Pennsylvania Crab Run (West Virginia), a stream Crab Island (disambiguation) Crab Cay, Colombia, a small island in the Caribbean Sea Music Crab canon, a musical form Crab Records, a defunct record label Crab (scratch), a DJ technique Songs "Crab", a song by Weezer from Weezer (Green Album) Sports Crab (horse) (1722–1750), a British Thoroughbred racehorse Basket Rimini Crabs, an Italian professional basketball team based in Rimini, Emilia-Romagna Crab (posture) used in gymnastics, breakdancing, yoga Crab or catch a crab, a rowing error Other uses Sherman Crab, a British World War II mine-clearing tank Panhard CRAB, a French armoured combat vehicle The Crab, an outdoor 1962 painted steel sculpture by Alexander Calder Roger Crab (1621–1680), English soldier, haberdasher, herbal doctor and writer An athletic move akin to the float in breakdancing Crabs, a slang phrase for the parasite Pediculosis pubis Crab, a character from WordWorld See also Crab apples, species of the genus Malus other than the table apple Malus domestica Krab (disambiguation) Animal common name disambiguation pages