from The American Heritage® Dictionary of the English Language, 4th Edition
- transitive v. To cause (a glassy material) to become crystalline and brittle.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- v. To become crystalline and brittle
from the GNU version of the Collaborative International Dictionary of English
- transitive v. To deprive of glasslike character; to take away vitreous luster and transparency from.
from The Century Dictionary and Cyclopedia
- To destroy or change, either in part or wholly, the vitreous condition of. See devitrification and glass.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- v. become crystalline
- v. make (glassy materials) brittle or opaque
Too little heat, or too much, and the result would not set properly: The glaze or color might peel, craze, bubble, or devitrify.
English experimenter will probably prefer to use English glass, and, if he is wise, will buy a good deal at a time, since it does not appear to devitrify with age, and uniformity is thereby more likely to be secured.
Long-buried glassy lavas devitrify, or pass to a stony condition, under the unceasing action of underground waters; but their flow lines and perlitic and spherulitic structures remain to tell of their original state.