trademark
n. any word, phrase, name, symbol, device, or combination thereof used by manufacturers or merchants to identify their products (e.g., Oreo cookies, Lycra stretch fiber, Crayola crayons) and to distinguish them from the products of others. Common trademarks include slogans, logos, and specific packaging designs. Whereas a trademark identifies products, a trade name identifies the company that makes or sells them. However, in the area of pharmacology, the two terms are often used interchangeably to refer to proprietary drugs.