fundus

fun·dus

noun \ˈfən-dəs\

plural fun·di \-ˌdī, -ˌdē\

Definition of FUNDUS

: the bottom of or part opposite the aperture of the internal surface of a hollow organ: as a : the greater curvature of the stomach b : the lower back part of the bladder c : the large upper end of the uterus d : the part of the eye opposite the pupil