Webster's Revised Unabridged Dictionary · 1913

Amorphism

Amorphism ({not transcribed}) , noun

[See Amorphous.]

There are stony substances which, when fused, may cool as glass or as stone; the glass state is spoken of as a state of amorphism.

A state of being amorphous; esp. a state of being without crystallization even in the minutest particles, as in glass, opal, etc.