vitreous body

noun
  1. a transparent gelatinous substance, permeated by fine fibrils, that fills the interior of the eyeball between the lens and the retina
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

vitreous body in Medicine

vitreous body

n.
  1. A transparent jellylike substance enclosing the vitreous humor and filling the interior of the eyeball behind the lens.hyaloid body vitreum
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.