from The American Heritage® Dictionary of the English Language, 4th Edition
- n. One of the minute vascular projections of the fetal chorion that combines with maternal uterine tissue to form the placenta.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. one of the tiny villi that stick out of the fetal chorion and combine with the mother's uterine tissue to form the placenta
Sorry, no etymologies found.