Pertaining to the amnion.

(biology) Any of the Amniota group of vertebrates having an amnion during the development of the embryo; mammals, birds and reptiles.

plural of amniote

inflammation of the amnion

(zoology) In placental mammals, a fluid contained within the amnion membrane that surrounds a developing embryo or fetus.

(anatomy) Between the amnion and endometrium

The sac in which the foetus develops in mammals, reptiles and birds.

plural of amniotic sac

plural of amniotic fluid

(pathology) A complication of pregnancy characterized by movement of amniotic fluid past the placenta