(noun) protective secretion of the mucus membranes; in the gut it lubricates the passage of food and protects the epithelial cells; in the nose and throat and lungs it can make it difficult for bacteria to penetrate the body through the epithelium
Definitions for Cup
(noun) a round vessel equipped with a handle and designed for drinking
(noun) a small open container usually used for drinking; usually has a handle
(noun) a United States liquid unit equal to 8 fluid ounces