Pronunciation: (in-ûrt', i-nûrt'), [key]
1. having no inherent power of action, motion, or resistance (opposed to active): inert matter.
2. Chem.having little or no ability to react, as nitrogen that occurs uncombined in the atmosphere.
3. Pharm.having no pharmacological action, as the excipient of a pill.
4. inactive or sluggish by habit or nature.

Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.

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