Definition of fundus
: the bottom of or part opposite the aperture of the internal surface of a hollow organ: such 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
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Merriam-Webster unabridged
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Time Traveler for fundus
The first known use of fundus was in 1638
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