Answers. Relevance. Rating Newest Oldest. Best Answer: a Spanish term that was formerly used in the Spanish Empire to designate people of mixed European (Spaniard) and Amerindian ancestry living in the region of Latin America.[1] The word originated from the Romance language / Latin word Mixticius, meaning mixed.
For centuries, lead toxicity has been one of the most significant preventable causes of neurologic morbidity from an environmental toxin. A heavy metal, lead is ubiquitous in our environment but has no physiologic role in biological systems.
Heavy metal poisoning is rare in the UK, even in industries where there is an increased risk. 1  The most common cause of heavy metal poisoning is lead. 2  The incidence of lead poisoning has been falling steadily in affluent countries, due to removal of lead from paint, petrol and food cans.