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%.
References in periodicals archive ?
Jhunjhunwala's tryst with semi-vitreous cups, plates and tumblers started 28 years ago.