[1] : The Collaborative International Dictionary of English v.0.48

molt \molt\, moult \moult\, v. i. imp.  p. p. molted or
   moulted; p. pr.  vb. n. molting or moulting. oe.
   mouten, l. mutare. see mew to molt, and cf. mute, v. t.
   the prevalent spelling is, perhaps, moult; but as the u
   has not been inserted in the otherwords of this class, as,
   bolt, colt, dolt, etc., it is desirable to complete the
   analogy by the spelling molt.
   to shed or cast the hair, feathers, skin, horns, or the like,
   as an animal or a bird. --bacon.
   1913 webster molt
see also:
molted moulted molting moulting mew mute 
moult u molt 

[2] : The Collaborative International Dictionary of English v.0.48

molt \molt\, moult \moult\, v. t.
   to cast, as the hair, skin, feathers, or the like; to shed.
   1913 webster molt

[3] : The Collaborative International Dictionary of English v.0.48

molt \molt\, moult \moult\, n.
   the act or process of changing the feathers, hair, skin,
   etc.; molting.
   1913 webster

[4] : The Collaborative International Dictionary of English v.0.48

moult \moult\ m=olt, v.  n.
   see molt.
   1913 webster
see also:
molt 

[5] : WordNet (r) 2.0

moult
     n : periodic shedding of the cuticle in arthropods or the outer
         skin in reptiles syn: molt, molting, moulting, ecdysis
     v : cast off hair, skin, horn, or feathers; "out dog sheds every
         spring" syn: shed, molt, exuviate, slough
see also:
molt molting moulting ecdysis shed exuviate 
slough 

Moult >> M Words
Moult, definition of term: Moult
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