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Webster 1913 Edition
Amnion
Am′ni-on
,Noun.
[Gr. [GREEK] the membrane round the fetus, dim. of [GREEK] lamb.]
(Anat.)
A thin membrane surrounding the embryos of mammals, birds, and reptiles.
Webster 1828 Edition
Amnion
AM'NIOS
or AM'NION,Noun.
The innermost membrane surrounding the fetus in the womb. It is thin, transparent, soft and smooth on the inside, but rough on the outside.
Definition 2024
amnion
amnion
English
Noun
amnion (plural amnions or amnia)
- (anatomy) The innermost membrane of the fetal membranes of reptiles, birds, and mammals; the sac in which the embryo is suspended.
Derived terms
Translations
innermost membrane of the fetal membranes of reptiles, birds, and mammals
Anagrams
Dutch
Pronunciation
- IPA(key): /ˈɑm.ni.ɔn/
Etymology
From Latin amnion (“membrane around a fetus”), from Ancient Greek ἀμνίον (amníon, “bowl in which the blood of victims was caught”).
Noun
amnion m (uncountable)