bushy chorion

villous chorion

the part of the chorion where the villi persist and form the fetal part of the placenta.
Farlex Partner Medical Dictionary © Farlex 2012

vil·lous chor·i·on

(vil'ŭs kōr'ē-on)
That part of the chorion where the chorionic villi have persisted to form the fetal part of the placenta.
Synonym(s): bushy chorion, chorion frondosum.
Medical Dictionary for the Health Professions and Nursing © Farlex 2012