invitrifiable

English

Etymology

From in- +‎ vitrifiable.

Adjective

invitrifiable (not comparable)

1. Not capable of being vitrified.
   • 1784, Richard Kirwan, Elements of Mineralogy:

     Macquer found the purest gypsum invitrifiable by solar heat ; that of Monmartre seemed to yield , but probably was not pure. Even the heat excited by pure air , if continued long enough to dissipate the acid , cannot vitrify it

References

“invitrifiable”, in Webster’s Revised Unabridged Dictionary, Springfield, Mass.: G. & C. Merriam, 1913, →OCLC.