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 (ăm′nē-ən, -ŏn′)
n. pl. am·ni·ons or am·ni·a (-nē-ə)
A tough, thin membrane that forms a sac enclosing the embryo or fetus of a mammal, bird, or reptile. It is filled with a serous fluid in which the embryo or fetus is suspended.

[New Latin, from Greek amneion, variant of amneios, amnion, and from amnion, amnion, both from amnos, lamb; akin to Irish úan, Latin agnus, and Old Church Slavonic agnę, lamb.]

am′ni·ot′ic (-ŏt′ĭk), am′ni·on′ic (-ŏn′ĭk) adj.


another word for amniotic
ThesaurusAntonymsRelated WordsSynonymsLegend:
Adj.1.amnionic - of or related to the amnion or characterized by developing an amnionamnionic - of or related to the amnion or characterized by developing an amnion; "amniotic membrane"
References in periodicals archive ?
Associations of PFOS with INSL3 and steroid hormone concentrations in amnionic fluid suggest that prenatal PFOS exposure may have affected fetal Leydig cell function in our study population.
Hallak et al, 1993, says magnesium administered parenterally promptly crosses the placenta to achieve equilibrium in fetal serum and less so in amnionic fluid.
The presence of a large amount of debris within amnionic fluid is generally resultant of embryonic degeneration.