• (a.) Having the nature and qualities of glass; glasslike; -- distinguished from ceramic.
Vit'ric adjective [ Latin vitrum glass.] Having the nature and qualities of glass; glasslike; -- distinguished from ceramic . 
vitric 1. Similar to glass. 2. Having the characteristics or appearance of glass. 3. Of the nature of or resembling glass. 4. A description of any glassy, pyroclastic material containing at least 75% glass.