Definition of "whistler" []

• One that whistles: a whistler of popular tunes. (noun)
• A marmot (Marmota caligata) of the mountains of northwest North America, having a grayish coat and a shrill, whistling cry. (noun)
• Any of various birds that produce a whistling sound. (noun)
• A horse having a respiratory disease characterized by wheezing. (noun)
• Physics An electromagnetic wave of audio frequency produced by atmospheric disturbances such as lightning, having a characteristically decreasing frequency responsible for a whistling sound of descending pitch in detection equipment. (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.

• "Don't want to start talking about the built in "speaker" that more correctly would be called a whistler ..."
• "The windows xp (codename "whistler") betas started at the end of 2000 for Ms affiliates, and the offical beta started feb 2001 2000 to 2009 is close enough to ten years to count for most people."
• "The windows xp codename "whistler" betas started at the end of 2000 for Ms affiliates, and the offical beta started feb 2001"