Sinonim hard lead

English Thesaurus

1. unrefined lead that is hard because of the impurities it contains (noun.substance)

hypernym	:	atomic number 82, lead, pb,
definition	:	a soft heavy toxic malleable metallic element; bluish white when freshly cut but tarnishes readily to dull grey (noun.substance)

2. a lead alloy that contains about 5% antimony (noun.substance)

hyponym	:	grid metal,
definition	:	a kind of hard lead that is used for grids in storage batteries (noun.substance)