Lead
Definition
Lead is a heavy metal that is naturally occurring in the earth's crust. It is toxic to humans and animals when ingested or inhaled, causing damage to the nervous system and other organs.
Analogy
Think of lead as an unwelcome party guest. Just like how an unwanted guest can disrupt a fun gathering, lead interferes with normal bodily functions when it enters our system, causing various health problems.
Related terms
Heavy Metals: These are metallic elements that have a relatively high density compared to water. Like lead, many heavy metals are toxic in certain concentrations.
Toxicity: This refers to the degree to which a substance can harm humans or animals. Lead has high toxicity levels.
Neurotoxin: A type of toxin that specifically damages nerve cells (neurons). Lead is considered a neurotoxin because it affects the nervous system.
"Lead" appears in:
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