from the GNU version of the Collaborative International Dictionary of English
- A combining form (also used adjectively) denoting a sulphate as an ingredient in certain double salts.
from The Century Dictionary and Cyclopedia
- n. In chem., a prefix to the name of a compound, signifying that it contains a sulphate as an ingredient, as the mineral lead-hillite, a sulphato-carbonate of lead.
Sorry, no etymologies found.