Definition of eggshell noun from the Oxford Advanced American Dictionary

     

    eggshell

     noun
    noun
    NAmE//ˈɛɡʃɛl//
     
     
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  1. 1[countable, uncountable] the hard thin outside of an egg
  2. 2 (also eggshell paint) [uncountable] a type of paint that is smooth but not shiny when it dries
See the Oxford Advanced Learner's Dictionary entry: eggshell