from The Century Dictionary and Cyclopedia
- n. A massive variety of alum-stone (which see).
- n. A loose clay containing iron pyrites from which alum may be made. It often occurs with beds of lignite, and usually contains rather less silica than the more compact alum slate.
Sorry, no etymologies found.
Sorry, no example sentences found.
Wordnik is becoming a not-for-profit! Read our announcement here.