- In philosophy, substance means, approximately, that element of an object without which it would not exist. In the millennia-old Aristotelian tradition, as well as early modern traditions that follow it, substances are treated as having attribute s and modes . For in-depth articles on the topic, see objecthood and substance theory.
- For the chemical concept, see chemical substance.
- Substance is sometimes used as a euphemism for harmful drugs.
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Last updated: 02-27-2005 12:10:35