residue. noun remainder, remains, remnant, leftovers, rest, extra, balance, excess, surplus, dregs, residuum She loaded the residue of lunch onto a tray.
Best Answer: Boogers are made of dried mucous, dust,pollen and anything unwanted breathed up your nose. Eating boogers is said to boost your immune system when your a kid. But adults should just use a handkerchief.
1 Typically, yellow boogers or just plain yellow mucus is a symptom of a sinus infection or bronchitis. 2  They can even signify nasal polyps in the nasal passages, so if you notice any other symptoms such as sinus pain or a blocked nasal passage, visit your doctor to find out what the cause is.