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Webster 1913 Edition

Invitrifiable

In-vit′ri-fiˊa-ble

,

Adj.

Not admitting of being vitrified, or converted into glass.

Kirwan.

Webster 1828 Edition

Invitrifiable

INVIT'RIFIABLE

,

Adj.

[in and vitrifiable, from vitrify.]

That cannot be vitrified or converted into glass.