The Collaborative International Dictionary of English v.0.48:
Mud \Mud\ (m[u^]d), n. [Akin to LG. mudde, D. modder, G. moder
mold, OSw. modd mud, Sw. modder mother, Dan. mudder mud. Cf.
Mother a scum on liquors.]
Earth and water mixed so as to be soft and adhesive.
Mud bass (Zool.), a fresh-water fish (Acantharchum
pomotis or Acantharchus pomotis) of the Eastern United
States. It produces a deep grunting note.
Mud bath, an immersion of the body, or some part of it, in
mud charged with medicinal agents, as a remedy for
Mud boat, a large flatboat used in dredging.
Mud cat. See mud cat in the vocabulary.
Mud crab (Zool.), any one of several American marine crabs
of the genus Panopeus.
Mud dab (Zool.), the winter flounder. See Flounder, and
Mud dauber (Zool.), a mud wasp; the mud-dauber.
Mud devil (Zool.), the fellbender.
Mud drum (Steam Boilers), a drum beneath a boiler, into
which sediment and mud in the water can settle for
Mud eel (Zool.), a long, slender, aquatic amphibian (Siren
lacertina), found in the Southern United States. It has
persistent external gills and only the anterior pair of
legs. See Siren.
Mud frog (Zool.), a European frog (Pelobates fuscus).
Mud hen. (Zool.)
(a) The American coot (Fulica Americana).
(b) The clapper rail.
Mud lark, a person who cleans sewers, or delves in mud.
Mud minnow (Zool.), any small American fresh-water fish of
the genus Umbra, as Umbra limi. The genus is allied to
Mud plug, a plug for stopping the mudhole of a boiler.
Mud puppy (Zool.), the menobranchus.
Mud scow, a heavy scow, used in dredging; a mud boat.
Mud turtle, Mud tortoise (Zool.), any one of numerous
species of fresh-water tortoises of the United States.
Mud wasp (Zool.), any one of numerous species of
hymenopterous insects belonging to Pepaeus, and allied
genera, which construct groups of mud cells, attached,
side by side, to stones or to the woodwork of buildings,
etc. The female places an egg in each cell, together with
spiders or other insects, paralyzed by a sting, to serve
as food for the larva. Called also mud dauber.