amnion

• POS: Noun
• HYPHEN: am=ni=on

CIDE DICTIONARY

amnion, n. [Gr. the membrane round the fetus, dim. of lamb.].

 A thin membrane surrounding the embryos of mammals, birds, and reptiles.  [1913 Webster]

OXFORD DICTIONARY

amnion, n. (pl. amnia) Zool. & Physiol. the innermost membrane that encloses the embryo of a reptile, bird, or mammal.

Derivative

amniotic adj.

Etymology

Gk, = caul (dimin. of amnos lamb)

THESAURUS

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