A collagen-like protein that, with hyaluronic acid, accounts for the gel state of the vitreous humor. ... Synonym: vitrosin. ... (05 Mar 2000) ... 
Type: Term Pronunciation: vit′rē-in Definitions: 1. A collagenlike protein that, with hyaluronic acid, accounts for the gel state of the vitreous humor. Synonyms: vitrosin