from
The Collaborative International Dictionary of English v.0.48
lead-free \lead-free\ adj.
1. not containing the element lead.
[WordNet 1.5]
2. specifically: Not containing a lead additive such as
tetraethyllead or tetramethyllead; -- of gasoline; as,
Most modern cars run on lead-free gasoline. Oposite of
{leaded}.
Syn: nonleaded, unleaded.
[WordNet 1.5]
3. specifically: Not containing a pigment having lead as a
component; -- of paints; as, lead-free paint should be
used wherever children are exposed to the painted surface.
[PJC]