decidua

English Thesaurus

1. the epithelial tissue of the endometrium (noun.body)

hypernym	:	epithelial tissue, epithelium,
definition	:	membranous tissue covering internal organs and other internal surfaces of the body (noun.body)

substance meronym	:	endometrium,
definition	:	(pregnancy) the mucous membrane that lines the uterus; thickens under hormonal control and (if pregnancy does not occur) is shed in menstruation; if pregnancy occurs it is shed along with the placenta at parturition (noun.body)