• Lead | Definition of Lead by Merriam-Webster

    www.merriam-webster.com/dictionary/lead Lead definition is - to guide on a way especially by going in advance. How to use lead in a sentence. When to use lead or led Synonym Discussion of lead.
  • Lead - Wikipedia

    en.wikipedia.org/wiki/Lead Lead (/ ˈ l ɛ d /) is a chemical element with the symbol Pb (from the Latin plumbum) and atomic number 82. It is a heavy metal that is denser than most common materials. Lead is soft and malleable, and also has a relatively low melting point.When freshly cut, lead is silvery with a hint of blue; it tarnishes to a dull gray color when exposed to air. Lead has the highest atomic number of any ...
  • Lead | Definition of Lead at Dictionary.com

    www.dictionary.com/browse/lead Lead definition, to go before or with to show the way; conduct or escort: to lead a group on a cross-country hike. See more.
  • lead | Definition, Uses, Properties, & Facts | Britannica

    www.britannica.com/science/lead-chemical-element 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 believed by the alchemists to be the oldest of metals, lead is highly durable and resistant to corrosion.
  • Lead - definition of lead by The Free Dictionary

    www.thefreedictionary.com/lead Define lead. lead synonyms, lead pronunciation, lead translation, English dictionary definition of lead. to conduct or escort: lead them out; a heavy bluish-gray metal Not to be confused with: led – past tense of lead: He led them along the path. v.
  • Lead | US EPA

    www.epa.gov/lead 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 Renovation Repair and Painting (RRP) rule.
  • Lead - National Institute of Environmental Health Sciences

    www.niehs.nih.gov/health/topics/agents/lead/index.cfm Lead exposure is linked to many health effects in adults. Blood lead levels greater than 15 µg/dl are associated with cardiovascular effects, nerve disorders, decreased kidney function, and fertility problems, including delayed conception and adverse effects on sperm and semen, such as lower sperm counts and motility.
  • Learn about Lead | Lead | US EPA

    www.epa.gov/lead/learn-about-lead Lead Exposure Data. The U.S. Centers for Disease Control and Prevention’s (CDC) National Center for Health Statistics monitors blood lead levels in the United States. Get information on the number of children with elevated blood lead levels, and number and percentage of children tested for lead in your area.
  • Blood Lead Levels in Children | Lead | CDC

    www.cdc.gov/nceh/lead/prevention/blood-lead-levels.htm Though lead can be found in many sources, lead exposure is entirely preventable. The key is stopping children from coming into contact with lead and treating children who have been poisoned by lead. Parents can take simple steps to make their homes more lead-safe. Children can be given a blood test to measure the level of lead in their blood.
  • Lead vs. Led: How to Choose the Right Word

    www.thoughtco.com/lead-and-led-1692756 The noun "lead" (rhymes with "red") refers to the metal (as in "a lead pipe"). The noun "lead" (which rhymes with "deed") refers to an initiative, an example, or a position at the front ("in the lead"). The verb "lead" and the noun "lead" are homographs: words that have the same spelling but differ in meaning and (sometimes) pronunciation.