- corpus vitreum
- vitreous gel
- vitreous humor
- Transparent gel filling the inner portion of the eyeball between the lens and the retina.
Definition from: CRISP Thesaurus via Unified Medical Language System at the National Library of Medicine
- The clear colorless transparent jelly that fills the eyeball posterior to the lens, is enclosed by a delicate hyaloid membrane, and in the adult is nearly homogeneous but in the fetus is pervaded by fibers with minute nuclei at their points of junction.
Definition from: Merriam-Webster's Medical Dictionary by Merriam-Webster Inc.
See also Understanding Medical Terminology.