amnion

/ˈæm.nɪ.ɒn/
/ˈæm.nɪ.ɑːn/

noun

  1. The innermost membrane of the fetal membranes of reptiles, birds, and mammals; the sac in which the embryo is suspended.

Similar Words

amnios amnesia /ˌæmˈniʒə/ amnesiac amnesiacs amnesic amnesics amnestied /ˈam.nəs.tiːd/ amnesties amnesty /ˈæm.nɪ.sti/ amnestying