placenta

Term: placenta

Origin:  Anc Greek πλακούντας/placundas(flat cake ) > πλάξ/plax(=flat)

Coined: by Italian surgeon and anatomist Realdo Colombo in 16^th cen

Definition:

It is an vascular fetomaternal organ that joins the developing fetus to the uterine providing fetus with  the nourishment. It serves also to  metabolic interchange between the embryo(eight weeks of gestation)  or fetus (after 9 weeks of gestasion)  and mother.

Comment

The word “platelet” has also the same root with word  "placenta"