MOULTING

molt, molting, moult, moulting, ecdysis

(noun) periodic shedding of the cuticle in arthropods or the outer skin in reptiles

Source: WordNet® 3.1

Verb

moulting

present participle of moult

Noun

moulting (plural moultings)

A moult; the shedding of skin, feathers, etc.

Source: Wiktionary

MOULT

Molt, Moult, v. i. [imp. & p. p. Molted or Moulted; p. pr. & vb. n. Molting or Moulting.] Etym: [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.]

Definition: To shed or cast the hair, feathers, skin, horns, or the like, as an animal or a bird. Bacon.

Molt, Moult, v. t.

Definition: To cast, as the hair, skin, feathers, or the like; to shed.

Molt, Moult, n.

Definition: The act or process of changing the feathers, hair, skin, etc.; molting.

Moult, v. & n.

Definition: See Molt.

Source: Webster’s Unabridged Dictionary 1913 Edition