In IBS, there may be increased mucus production by the lining of the intestine. That mucus is then passed in the stool. Mucus is more often associated with diarrhea-predominant IBS than with constipation-predominant IBS or alternating type IBS (IBS-A).
MUD. n. A computer program, usually running over the Internet, that allows multiple users to participate in virtual-reality role-playing games.
mud, mire, or ooze; slush. 2. a deposit of ooze at the bottom of a body of water. 3. any of various more or less mudlike deposits or mixtures. 4. the sediment in a steam boiler or water tank.