Definition of Nasal mucus

1. Atrial Fibrillation Slideshow Pictures
2. Bad Bugs and Their Bites Slideshow
3. Understanding Ulcerative Colitis Slideshow

Nasal mucus: A slippery fluid produced by the membranes lining the nose. Excessive nasal mucus is the basis of a runny nose. Mucus is the Latin word for "a semifluid, slimy discharge from the nose."