aqueous humor

American  

noun

Anatomy.

1. the limpid watery fluid that fills the space between the cornea and the crystalline lens in the eye.

---

aqueous humor Scientific  

1. The clear, watery fluid that fills the chamber of the eye between the cornea and the lens.

---

Etymology

Origin of aqueous humor

First recorded in 1635–45

Example Sentences

See Examples For:

aqueous humor

The findings were published in Investigative Ophthalmology and Visual Science under the title "Metabolomic profiling of aqueous humor from glaucoma patients identifies metabolites with anti-inflammatory and neuroprotective potential in mice."

From Science Daily ● Nov. 4, 2025

It is filled with a watery fluid called the aqueous humor.

From Textbooks ● Jun. 19, 2013

This will open perforations at the base of the cornea, allowing for the drainage of aqueous humor from the anterior compartment of the eye and, therefore, reducing intraocular pressure related to glaucoma.

From Textbooks ● Jun. 19, 2013

This protects the patient's crystalline lens and prevents aqueous humor from escaping when Dr. Filatov cuts out a small disk from the cornea directly over the pupil.

From Time Magazine Archive

The space occupied by the aqueous humor corresponds nearly to the portion of the eye covered by the transparent cornea.

From Special Report on Diseases of the Horse by Michener, Charles B.