Sentence examples for zonary from inspiring English sources

The entire surface of the sac may serve as a placenta (diffuse placenta, as in pigs); numerous separate patches of placental thickenings may develop (cotyledonary placenta, as in sheep); a thickened placental band may develop at the equator of the chorionic sac (zonary placenta, as in cats); or there may be a single oval patch of placental tissue (discoidal placenta, as in higher primates).