Pronunciation: non'pro-pri'e-tar'e nam
A short name (often called a generic name) of a chemical, drug, or other substance that is not subject to trademark (proprietary) rights but is, in contrast to a trivial name, recognized or recommended by government agencies (U.S. Food and Drug Administration) and by quasiofficial organizations (U.S. Adopted Names Council) for general public use. Like a proprietary name, it is almost always a coined designation derived without the use of set criteria.
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Examples: glitazone, GI cocktail, etc.