Posted by Smokey Stover on January 02, 2007
In Reply to: Cat whisker posted by Saurabh Bhatnagar on January 02, 2007
: cat whisker, how the same is used in day to day langusge, its meaning
In everyday language, it refers to the whisker of a cat, which would be one of the stiff, protruding hairs next to a cat's nostrils and abeam of its mouth to some extent. A cat may also have a few such stiff and protruding hairs above his eyes but below his ears. They are used as antennae by the cat, sometimes to test whether an opening is large enough for them to pass through.
The term cat's whisker is sometimes used for the wire or pin that touches a crystal in a home-made radio tuner, although not many people make their own radio in that way these days.