(MOO) One of the many MUD spin-offs (e.g. MUSH, MUSE, and MUX) created to diversify the realm of interactive text-based gaming. A MOO is similar to a MUSH in that the users themselves can create objects, rooms, and code to add to the environment.
The most frequently used server software for running a MOO is LambdaMOO but alternatives include WinMOO (http://www-personal.umich.edu/~cunkel/WinMOO/) and MacGoesMOO (http://neon.ci.lexington.ma.us/SpamCentral/scaron/mgm.html).
[Digital Research’s] Multiuser Distributed Operating System
[muhd-pak] /ˈmʌdˌpæk/ noun 1. a pastelike preparation, as one consisting of fuller’s earth, astringents, etc., used on the face as a cosmetic restorative. /ˈmʌdˌpæk/ noun 1. a cosmetic astringent paste containing fuller’s earth, used to improve the complexion
noun, Geology. 1. a hot spring filled with boiling mud. Compare (def 2).
[muhd-puhp-ee] /ˈmʌdˌpʌp i/ noun, plural mudpuppies. 1. any of several often large, aquatic salamanders of the genus Necturus, of eastern North America, having bushy, red gills and well-developed limbs. 2. any of several North American salamanders of the genus Ambystoma.