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.
Muda (waste) - A Japanese term meaning any activity that consumes resources but creates no value. 1  Those activities and results that should be eliminated. Many references cite the following seven categories of waste: 2  Excessive or early production. 3  Delays. 4  Most movement and transport. 5  Poor process design. 6  Most inventory.