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Definition of 'crab'


  1. decapod having eyes on short stalks and a broad flattened carapace with a small abdomen folded under the thorax and pincers
  2. a quarrelsome grouch
       Synonyms: crabby person
  3. (astrology) a person who is born while the sun is in Cancer
       Synonyms: Cancer
  4. the fourth sign of the zodiac; the sun is in this sign from about June 21 to July 22
       Synonyms: Cancer Cancer the Crab
  5. the edible flesh of any of various crabs
       Synonyms: crabmeat
  6. infests the pubic region of the human body
       Synonyms: crab louse pubic louse Phthirius pubis
  7. a stroke of the oar that either misses the water or digs too deeply; "he caught a crab and lost the race"


  1. direct (an aircraft) into a crosswind
  2. scurry sideways like a crab
  3. fish for crab
  4. complain; "What was he hollering about?"
       Synonyms: gripe grouse beef squawk bellyache holler

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