Definition of "flyweight" []

• A weight division in professional boxing having an upper limit of 112 pounds (50.4 kilograms), between junior flyweight and junior bantamweight. (noun)
• A boxer competing in this weight division. (noun)
• A similar weight division in other sports, such as weightlifting. (noun)
• A contestant in this weight division. (noun)
• Something that is particularly small, light, or inconsequential. (noun)

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.

• "Labrada finished second at the 2003 world championships in flyweight, while Yague won the finweight division."
• "Schutzstaffel (SS) tried to set up a fight between him, a tiny flyweight fellow, and a tall dying guy, whom they hoped he’d kill with one blow."
• "As a result there is a flyweight called Kwanpichit 13 Rien Express in honour of a Bangkok restaurant, while an unbeaten southpaw super-flyweight has been variously known as Samson Toyota-Thailand, Samson 3-K Battery and Samson Dutch Boy Gym according to who was stumping up the cash at the time."