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Hard drug definition

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A hard drug is a nonmetabolizable compound, characterized either by high lipid solubility and accumulation in adipose tissues and organelles, or by high water solubility.

In the lay press the term "Hard Drug" refers to a powerful drug of abuse such as cocaine or heroin.


See also:

Generic Equipment Model (GEM) definition
Hammett equation (or Hammett relation) definition
glycuronic acids definition
Handedness definition
glycosyl group definition