fundus
fun.dus \'f*n-d*s\ \-.di-, -.de-\ n or fun.di [NL, fr. L, bottom] pl : the bottom of or part opposite the aperture of the internal surface of a hollow organ : as : the greater curvature of the stomach : the lower back part of the bladder : the large upper end of the uterus : the part of the eye opposite the pupil