Relating to or characterized by a discoplacenta; having a disk-shaped placenta.
From discoplacenta + -al (relating to). The suffix -al creates an adjective describing the property or relation.
Scientists classify mammals partly by placenta shape, and discoplacental mammals (including humans!) have a particular evolutionary advantage in how nutrients flow to the developing baby.
Complete word intelligence in one call. Free tier — 50 lookups/day.