hard_lead
1. [ noun ] (chemistry,metallurgy) a lead alloy that contains about 5% antimony
Synonyms: antimonial_lead
Related terms: lead grid_metal
2. [ noun ] (chemistry,metallurgy) unrefined lead that is hard because of the impurities it contains
Related terms: lead
Similar spelling:   hard_line
  hardly_a
  hardline
  hard-line
  hardly
  Hardel
  Hartle
  hard_liquor