American Heritage Dictionary
(4)
Century Dictionary
(17)
GNU Webster's 1913
(1)
WordNet
(3)
Elsewhere on the web
Lustre indicates the way a mineral's surface interacts with light and can range from dull to glassy (vitreous).— Color + Design Blog by COLOURlovers / Feed
Eyes were enucleated and hemisected, and the vitreous was removed in room light.— PLoS Biology: New Articles
Slide 12: • nonmetallic • blue • light blue streak • 3.5 - 4 hardness • vitreous or transparent— Recently Uploaded Slideshows
Slide 18: • nonmetallic • vitreous, pearly • colorless, pale brown, green, yellow • 2.5 hardness • separates into thin, glass - like plates— Recently Uploaded Slideshows

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