Sekirov Dictionary

amniotic sac

UK /ˌæm.niːˌɒt.ɪk ˈsæk/US /ˌæm.niˌɔt.ɪk ˈsæk/

noun1

  1. The sac in which the foetus develops in mammals, reptiles, and birds.
forms

amniotic sacs

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