Definition of "sweatpants" [sweatpants]

• Cotton jersey pants usually having a drawstring or elasticized waist and elasticized cuffs worn especially for exercising. (noun-plural)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• "For winter, I did spend about $100 for winter running gear, but you could run in sweatpants and sweatshirt if you want to."
• "There are many lifestyle benefits to running a home-based business: no commute, working in sweatpants and the array of readily available food in the kitchen refrigerator."
• "Tavi says she knows girls in sweatpants aren't trying to make a statement."