from Wiktionary, Creative Commons Attribution/Share-Alike License
- adj. Discoidal by derivation; applied especially to the placenta of humans and apes, supposed to have been derived from a diffused placenta.
from the GNU version of the Collaborative International Dictionary of English
- adj. Discoidal by derivation; -- applied especially to the placenta of man and apes, because it is supposed to have been derived from a diffused placenta.
from The Century Dictionary and Cyclopedia
- In embryology, noting the placenta of certain mammals such as the primates (man and apes), in which the villi are restricted to a disk-shaped chorionic area on the ventral side of the embryo.
meta- + discoidal (Wiktionary)