Definition of

Crab

  1. (noun, act) a stroke of the oar that either misses the water or digs too deeply
  2. (noun, animal) decapod having eyes on short stalks and a broad flattened carapace with a small abdomen folded under the thorax and pincers
  3. (noun, animal) a louse that infests the pubic region of the human body
  4. (noun, food) the edible flesh of any of various crabs
  5. (noun, location) the fourth sign of the zodiac; the sun is in this sign from about June 21 to July 22
  6. (noun, person) (astrology) a person who is born while the sun is in Cancer
  7. (noun, person) a quarrelsome grouch
  8. (verb, communication) complain
  9. (verb, competition) fish for crab
  10. (verb, motion) scurry sideways like a crab
  11. (verb, motion) direct (an aircraft) into a crosswind

via WordNet, Princeton University

Origin of the word Crab

  1. O.E. crabba, from a general Gmc. root (cf. Low Ger. krabben "to scratch, claw"). The constellation name is attested in Eng. from c.1000; the Crab Nebula (1868), however, is in Taurus, and is so called for its shape. Crab "fruit of the wild apple tree" (early 15c.) may be from unrelated Scandinavian scrab, of obscure origin. The combination of … more

via Online Etymology Dictionary, ©2001 Douglas Harper

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