What is another word for allantoic?
Pronunciation: [ˈalantˌə͡ʊɪk] (IPA) 
Allantoic is an adjective that describes something related to the allantois, a membranous sac that forms in the embryo of certain animals. Synonyms for allantoic include allantoid, allantoidal, and allantonic. Allantoin is a compound found in the allantois of many mammals and is sometimes used in skin-care products for its moisturizing properties. Other related terms include umbilical, as the allantois connects to the embryo's umbilical cord, and amniotic, as the allantois is one of the membranes that form the amniotic sac surrounding the developing fetus. Overall, the various synonyms for allantoic relate to the specialized structures that develop during embryonic development.
