A trademark used for a plastic disk-shaped toy that players throw and catch. This trademark sometimes occurs in print meaning "a throw-and-catch game played with this toy": "The Mall is a better place to play Frisbee with a dog" (Los Angeles Times).
The American Heritage® Dictionary of the English Language, Fourth Edition Copyright © 2007, 2000 by Houghton Mifflin Company. Updated in 2009. Published by Houghton Mifflin Company. All rights reserved.