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.
   [1913 Webster]

   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
      disease.

   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
      Dab.

   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
      removal.

   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.
      [Slang]

   Mud minnow (Zool.), any small American fresh-water fish of
      the genus Umbra, as Umbra limi. The genus is allied to
      the pickerels.

   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.
      [U.S.]

   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.
      [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Wasp \Wasp\, n. [OE. waspe, AS. w[ae]ps, w[ae]fs; akin to D.
   wesp, G. wespe, OHG. wafsa, wefsa, Lith. vapsa gadfly, Russ.
   osa wasp, L. vespa, and perhaps to E. weave.] (Zool.)
   Any one of numerous species of stinging hymenopterous
   insects, esp. any of the numerous species of the genus
   Vespa, which includes the true, or social, wasps, some of
   which are called yellow jackets.
   [1913 Webster]

   Note: The social wasps make a complex series of combs, of a
         substance like stiff paper, often of large size, and
         protect them by a paperlike covering. The larvae are
         reared in the cells of the combs, and eat insects and
         insect larvae brought to them by the adults, but the
         latter feed mainly on the honey and pollen of flowers,
         and on the sweet juices of fruit. See Illust. in
         Appendix.
         [1913 Webster]

   Digger wasp, any one of numerous species of solitary wasps
      that make their nests in burrows which they dig in the
      ground, as the sand wasps. See Sand wasp, under Sand.


   Mud wasp. See under Mud.

   Potter wasp. See under Potter.

   Wasp fly, a species of fly resembling a wasp, but without a
      sting.
      [1913 Webster]
      [1913 Webster]