Examlex
An isotope of an element contains the same number of neutrons but different numbers of protons.
Morphine
A potent opiate analgesic drug used to relieve severe pain, often used in medical settings.
Heroin
A highly addictive opiate drug derived from morphine, often used illicitly for its euphoric effects.
Environment
The surroundings or conditions in which a person, animal, or plant lives or operates, encompassing both natural and human-made conditions.
Drug Tolerance
A physiological condition where increased doses of a drug are required to achieve effects originally produced by lower doses, due to the body's adaptation to the drug.
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