Unvitrified

ppl. a. (UN-¹ 8.)

1

[1775. Ash.]

2

1779. Encycl. Brit. (ed. 2), IV. 2674/1. Another sort of glass,… [having] some unvitrified particles in its substance.

3

1839. Ure, Dict. Arts, 1160. The superficial film of colours will remain unvitrified.

4

1888. Encycl. Brit., XXIV. 264/1. The vitrified walls are supported by masses of unvitrified stone.

5