Meaning of SUBSTANCE ABUSE

WordNet Dictionary
	Definition:		[n]  excessive use of drugs
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	Synonyms:		drug abuse, habit
	See Also:		abuse, alcohol abuse, alcoholic abuse, alcoholism abuse, misuse
Biology Dictionary
	Definition:		This is the state of being physically or psychologically dependent on some substance. Common abused substances include: ethyl alcohol (grain alcohol) opioids (opium, heroin, hydrocodone, hydromorphone, oxycodone, meperidine [Demerol]) hallucinogens (LSD, psilocybin, DMT, morning glory seeds) mescaline, MDA, PMA, STP amphetamines cocaine inhalants (solvents and aerosols)