Lead refers to a heavy, malleable, bluish-gray metallic element that is toxic when ingested or inhaled. It has been used historically in various applications such as pipes, paint, batteries, and ammunition.
Related terms
Lead Poisoning: A condition caused by the accumulation of lead in the body resulting in various health problems.
Lead-acid Battery: A type of rechargeable battery commonly used for starting car engines or providing backup power.
Pencil: An instrument used for writing or drawing consisting of a thin rod of graphite (often mistakenly called "lead") encased in wood.