Substance may refer to: Wikipedia does not have an article with this exact name. ... Wiktionary is a Wikimedia Foundation project intended to be a free wiki dictionary (hence: Wiktionary) (including thesaurus and lexicon) in every language. ...
Substance theory, in philosophy, that element of an object without which it would not exist, or what exists only by itself (causa sui)
Chemical substance, in chemistry, a substance is an element or compound with uniform composition. If a substance is not a mixture it is called a pure substance
Substance (medicine), in medicine, substance is any drug, chemical, or biologic entity, as well as any material capable of being self-administered or abused because of its physiologic or psychologic effects
This is a disambiguation page: a list of articles associated with the same title. If an internal link referred you to this page, you may wish to change the link to point directly to the intended article.
Substance abuse refers to the overindulgence in and dependence on a stimulant, depressant, chemical substance, herb (plant) or fungus leading to effects that are detrimental to the individual's physical health or mental health, or the welfare of others.
There are on-going debates as to the exact distinctions between substance abuse and substance dependence, but current practice standard distinguishes between the two by defining substance dependence in terms of physiological and behavioral symptoms of substance use, and substance abuse in terms of the social consequences of substance use.
Substance abuse is sometimes used as a synonym for drug abuse, drug addiction, and chemical dependency, but actually refers to the use of substances in a manner outside sociocultural conventions.
Substance theory, in philosophy, that element of an object without which it would not exist, or what exists only by itself (causa sui)
Chemical substance, in chemistry, a substance is an element or compound with uniform composition.
Substance (medicine), in medicine, substance is any drug, chemical, or biologic entity, as well as any material capable of being self-administered or abused because of its physiologic or psychologic effects
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