Source : Webster's Revised Unabridged Dictionary (1913)

Indument \In"du*ment\, n. [L. indumentum a covering. See
   {Indue}, and cf. {Induement}.] (Zo["o]l.)
   Plumage; feathers.

Source : WordNet®

indument
     n : a covering of fine hairs (or sometimes scales) as on a leaf
         or insect [syn: {indumentum}]