Capable of being devitrified; able to be converted from a glassy to a crystalline state.
From devitrify + -able (capable of). Glass terminology from de- + Latin vitreus (glassy).
Glass makers discovered that certain glass is devitrifiable—meaning it can accidentally turn crystalry and cloudy over centuries, which is why ancient glass sometimes looks diseased and opaque.
Complete word intelligence in one call. Free tier — 50 lookups/day.