Amnion

3 definitions found

From The Collaborative International Dictionary of English v.0.48 [gcide]:

  Amnion \Am"ni*on\, n. [Gr. ? the membrane round the fetus, dim.
     of ? lamb.] (Anat.)
     A thin membrane surrounding the embryos of mammals, birds,
     and reptiles.
     [1913 Webster]



From WordNet (r) 2.0 [wn]:

  amnion
       n : thin innermost membranous sac enclosing the developing
           embryo of higher vertebrates (reptiles, birds and
           mammals) [syn: {amniotic sac}, {amnios}]
       [also: {amnia} (pl)]

From Moby Thesaurus II by Grady Ward, 1.0 [moby-thes]:

  22 Moby Thesaurus words for "amnion":
     allantoic membrane, amniotic sac, arachnoid membrane,
     basement membrane, conjuctiva, eardrum, hymen, maidenhead,
     membrana serosa, membrana tympana, membrane, meninges, meninx,
     neurilemma, pellicle, pericardium, perineurium, pleura, serosa,
     tympanic membrane, tympanum, velum