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  1. Lead - Wikipedia

    Lead is a neurotoxin that accumulates in soft tissues and bones. It damages the nervous system, interferes with biological enzymes, and can cause neurological disorders ranging from behavioral …

  2. LEAD Definition & Meaning - Merriam-Webster

    4 days ago · Lead is both a noun and a verb, as most people know. There are several unrelated nouns spelled lead: one most commonly refers to a metal (as in, "The paint was made with lead"), and the …

  3. Lead | US EPA

    May 28, 2026 · Learn about the health effects of lead, who is at risk, how to test for lead in paint or other areas of your home, how to find or become a lead-safe certified firm, and more about the Lead …

  4. Lead | Definition, Uses, Properties, & Facts | Britannica

    Jun 19, 2026 · Lead, a soft, silvery white or grayish metal in Group 14 (IVa) of the periodic table. Lead is very malleable, ductile, and dense and is a poor conductor of electricity. Known in antiquity and …

  5. LEAD | English meaning - Cambridge Dictionary

    I don't know the way, so you'd better lead. If you lead in the jeep, we'll follow behind on the horses.

  6. Lead poisoning - World Health Organization (WHO)

    Jun 10, 2026 · Lead is a naturally occurring toxic metal found in the Earth’s crust. Its widespread use has caused extensive environmental contamination, human exposure and significant public health …

  7. Lead - Overview | Occupational Safety and Health Administration

    Inorganic lead is a malleable, blue-gray, heavy metal that occurs naturally in the Earth’s crust. Lead was one of the first metals used by humans and consequently, the cause of the first recorded …