Noun: hard lead haa(r)d led
- Unrefined lead that is hard because of the impurities it contains
"The old pipes were made of hard lead, which posed health risks"
- A lead alloy that contains about 5% antimony
"hard lead is often used in battery grids due to its improved mechanical properties";
- antimonial lead
Derived forms: hard leads
Type of: atomic number 82, lead[2], Pb
Encyclopedia: Hard lead