Amniotic sac
Amniotic sac noun - Thin innermost membranous sac enclosing the developing embryo of higher vertebrates (reptiles, birds and mammals).
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Synonyms for Amniotic sac
Placenta and amniotic sac are semantically related. In some cases you can use "Placenta" instead a noun phrase "Amniotic sac".
Placenta
Placenta noun - The vascular structure in the uterus of most mammals providing oxygen and nutrients for and transferring wastes from the developing fetus.
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Synonyms for Placenta
Amniotic sac and placenta are semantically related. You can use "Amniotic sac" instead a noun "Placenta".
Mutual synonyms
Cite this Source
Placenta and Amniotic sac. (2016). Retrieved 2026, August 03, from https://thesaurus.plus/related/amniotic_sac/placenta
Amniotic sac & Placenta. N.p., 2016. Web. 03 Aug. 2026. <https://thesaurus.plus/related/amniotic_sac/placenta>.
Placenta or Amniotic sac. 2016. Accessed August 03, 2026. https://thesaurus.plus/related/amniotic_sac/placenta.
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