shell - definition and synonyms

 
 
noun 

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/ʃel/
singularshell
pluralshells
  1. 1
    [countable/uncountable] the hard outer part that protects the body of a sea creature

    a crab shell

    The kids were collecting shells on the beach.

    1. a.
      [countable/uncountable] the hard outer part that protects the body of other animals, for example snails and tortoises
    2. b.
      [countable/uncountable] the hard outer part of an egg or nut

      pieces of egg shell

  2. 2
    [countable] the outer parts of something such as a car or plane