noun
- Plural of asphaltum; a dark bituminous substance used in paving, roofing, and waterproofing.
Usage: archaic or technical term; modern usage typically employs 'asphalt' or 'bitumen'
Examples
- The old recipe called for asphaltums mixed with lime for waterproofing.
- Historical documents reference various asphaltums used in ancient construction.
- The chemist studied different asphaltums to improve their durability.
- Medieval builders experimented with asphaltums for sealing stone structures.