allantoamnionic
adjective
al·lan·to·am·ni·on·ic
variants:
or allantoamniotic \ ə¦lan(ˌ)tōˌ⸗⸗¦⸗⸗ \
Definition of allantoamnionic
: relating to the allantois and amnion especially when fused into a single membrane — compare chorioallantois
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