Crabs are decapod crustaceans of the infraorder Brachyura, which typically have a very short projecting "tail", usually entirely hidden under the thorax. They live in all the world's oceans, in fresh water, and on land, are generally covered with a thick exoskeleton and have a single pair of claws. Many other animals with similar names – such as hermit crabs, king crabs, porcelain crabs, horseshoe crabs and crab lice – are not true crabs.

The above text is a snippet from Wikipedia: Crab
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  1. A crustacean of the infraorder Brachyura, having five pairs of legs, the foremost of which are in the form of claws, and a carapace.
  2. A bad-tempered person.
  3. An infestation of pubic lice, .
    ''Although crabs themselves are an easily treated inconvenience, the patient and his partner(s) clearly run major STD risks
  4. A playing card with the rank of three.
  5. A position in rowing where the oar is pushed under the rigger by the force of the water.
  6. A defect in an outwardly normal object that may render it inconvenient and troublesome to use.

Noun (etymology 2)

  1. The crab apple or wild apple.
  2. The tree bearing crab apples, which has a dogbane-like bitter bark with medical use.
  3. A cudgel made of the wood of the crab tree; a crabstick.
  4. A movable winch or windlass with powerful gearing, used with derricks, etc.
  5. A form of windlass, or geared capstan, for hauling ships into dock, etc.
  6. A machine used in ropewalks to stretch the yarn.
  7. A claw for anchoring a portable machine.

Noun (etymology 3)

  1. The tree species , native of South America.

Noun (etymology 4)

  1. Short for carabiner.


  1. To fish for crabs.
  2. To ruin.
  3. To complain.
  4. To drift sideways or to leeward .
  5. To navigate (an aircraft, e.g. a glider) sideways against an air current in order to maintain a straight-line course.
  6. , to fly slightly off the straight-line course towards an enemy aircraft, as the machine guns on early aircraft did not allow firing through the propeller disk.
  7. To back out of something.

Verb (etymology 2)

  1. (obsolete) To irritate, make surly or sour
  2. To be ill-tempered; to complain or find fault.
  3. (British dialect) To cudgel or beat, as with a crabstick

The above text is a snippet from Wiktionary: crab
and as such is available under the Creative Commons Attribution/Share-Alike License.

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