- the transparent gelatinous substance filling the eyeball behind the crystalline lens.
Origin of vitreous humor
First recorded in 1655–65
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
- The clear gelatinous substance that fills the eyeball between the retina and the lens.
- The vitreous body.
- The gelatinous substance that fills the chamber of the eye between the retina and the lens.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.