Search Result for "hard lead":
Wordnet 3.0

NOUN (2)

1. a lead alloy that contains about 5% antimony;
[syn: hard lead, antimonial lead]

2. unrefined lead that is hard because of the impurities it contains; 



WordNet (r) 3.0 (2006):

hard lead
    n 1: a lead alloy that contains about 5% antimony [syn: hard
         lead, antimonial lead]
    2: unrefined lead that is hard because of the impurities it
       contains