- secondary vitreous
- embryonic vitreous composed of densely packed fine fibrils formed around the primary vitreous by the inner layer of the optic cup.
Medical dictionary. 2011.
secondary vitreous
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Vitreous — A clear, jelly like substance that fills the middle of the eye. Also called the vitreous humor, humor in medicine referring to a fluid (or semifluid) substance. * * * 1. Glassy; resembling glass. 2. SYN: v. body. [L. vitreus, glassy, fr. vitrum,… … Medical dictionary
Vitreous sponge — Sponge Sponge (sp[u^]nj), n. [OF. esponge, F. [ e]ponge, L. spongia, Gr. spoggia , spo ggos. Cf. {Fungus}, {Spunk}.] [Formerly written also {spunge}.] 1. (Zo[ o]l.) Any one of numerous species of Spongi[ae], or Porifera. See Illust. and Note… … The Collaborative International Dictionary of English
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