fundus

noun

fun·​dus ˈfən-dəs 

plural fundi ˈfən-ˌdī  -ˌdē 

: 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

Examples of fundus in a Sentence

Recent Examples on the Web

Fluorescein angiogram: After performing a standard fundus exam, the ophthalmologist injects a dye, fluorescein, into a vein in the arm. —Mark Gurarie, Verywell Health, 7 Apr. 2025

Diagnosis and Treatment Diabetic retinopathy can be diagnosed with a dilated fundus (retinal) exam. —Sherri Gordon, Health, 1 July 2023

Using a portable fundus camera to image the eye, or even a smartphone camera, an algorithm could identify the signs of problems like diabetic retinopathy early enough to intervene. —Katie Palmer, STAT, 9 Apr. 2022

Normally, a glaucoma screening requires a doctor’s visit and the use of an ophthalmoscope to view the fundus, the internal lining of the eye and measure the health of a patient’s retina. —Nathan Percy, Orange County Register, 10 Feb. 2017

The quality, according to a press release from the university, is as good as the large fundus cameras (see image below) used in hospitals — and the new version is hand-held and 10 times cheaper. —Kristen Philipkoski, WIRED, 5 Mar. 2007

Word History

Etymology

borrowed from New Latin, going back to Latin, "bottom, base" — more at bottom entry 1

First Known Use

1638, in the meaning defined above

Rhymes for fundus

• profundus

Medical Definition

fundus

noun

fun·​dus ˈfən-dəs 

plural fundi -ˌdī  -ˌdē 

: 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