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  • adj: (embryology) isolated from the environment, as certain eggs enclosed within a shell or membrane.

    (origin: 1930–35; < greek kleido(ûn) to lock up (v. deriv. of kleís (gen. kleidós) bolt, key) + -ic)

    July 23, 2008

  • cleidoic = closed, isolated from the ambient, as vertebrate eggs that are invested by a shell or membrane

    May 9, 2017