vitreous(redirected from persistent hyperplastic vitreous)
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Related to persistent hyperplastic vitreous: Persistent Hyperplastic Primary Vitreous
1. of, relating to, or resembling glass
2. made of, derived from, or containing glass
3. of or relating to the vitreous humour or vitreous body
Collins Discovery Encyclopedia, 1st edition © HarperCollins Publishers 2005
Descriptive of that degree of vitrification evidenced by low water absorption; generally signifies less than 0.3% absorption (except for floor and wall tile and low-voltage electrical porcelain, for which it signifies less than 3.0% absorption).
McGraw-Hill Dictionary of Architecture and Construction. Copyright © 2003 by McGraw-Hill Companies, Inc.