semi-vitreous

semi-vitreous

Descriptive of that degree of vitrification evidenced by a moderate or intermediate water absorption, i.e., a water absorption of 0.3 to 3.0% except for floor tile and wall tile, which are considered semi-vitreous when water absorption is between 3.0 and 7.0%.
McGraw-Hill Dictionary of Architecture and Construction. Copyright © 2003 by McGraw-Hill Companies, Inc.
References in periodicals archive ?
Your mark was used on semi-vitreous dinnerware from 1935 to 1955.
Jhunjhunwala's tryst with semi-vitreous cups, plates and tumblers started 28 years ago.
His natural ash glaze wares are distinctive because he generally uses a kaolin-based, semi-vitreous slip that fires to an orange-red and provides a smoother and more consistent palette for the capricious effects of wood ash.