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
cumthe thick white fluid containing spermatozoa that is ejaculated by the male genital tract
mustype genus of the Muridae: common house mice; the tips of the upper incisors have a square notch
2-letter words 3
usNorth American republic containing 50 states - 48 conterminous states in North America plus Alaska in northwest North America and the Hawaiian Islands in the Pacific Ocean; achieved independence in 1776
