caul

English Thesaurus

1. the inner membrane of embryos in higher vertebrates (especially when covering the head at birth) (noun.body)

hypernym	:	fetal membrane,
definition	:	any membrane that functions for the protection or nourishment or respiration or excretion of a developing fetus (noun.body)

part meronym	:	placenta,
definition	:	the vascular structure in the uterus of most mammals providing oxygen and nutrients for and transferring wastes from the developing fetus (noun.body)

2. part of the peritoneum attached to the stomach and to the colon and covering the intestines (noun.body)

hypernym	:	omentum,
definition	:	a fold of peritoneum supporting the viscera (noun.body)