/um bil"i keuhs, um'beuh luy"keuhs/ , n. , pl. umbilici /-bil"euh suy', -beuh luy"suy/ .
1. Anat. the depression in the center of the surface of the abdomen indicating the point of attachment of the umbilical cord to the embryo; navel.
2. Bot. , Zool. a navellike formation, as the hilum of a seed.
[ 1605-15; umbilicus navel, middle, center; see NAVEL ]