The Collaborative International Dictionary of English v.0.48:

Miller \Mill"er\ (m[i^]l"[~e]r), n.
   1. One who keeps or attends a flour mill or gristmill.
      [1913 Webster]

   2. A milling machine.
      [1913 Webster]

   3. (Zool.)
      (a) A moth or lepidopterous insect; -- so called because
          the wings appear as if covered with white dust or
          powder, like a miller's clothes. Called also moth
          miller.
      (b) The eagle ray.
      (c) The hen harrier. [Prov. Eng.]
          [1913 Webster]

   Miller's thumb. (Zool.)
      (a) A small fresh-water fish of the genus Uranidea
          (formerly Cottus), as the European species
          (Uranidea gobio), and the American (Uranidea
          gracilis); -- called also bullhead.
      (b) A small bird, as the gold-crest, chiff-chaff, and
          long-tailed tit. [Prov. Eng.]
          [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Moth \Moth\, n.; pl. Moths (m[o^]thz). [OE. mothe, AS.
   mo[eth][eth]e; akin to D. mot, G. motte, Icel. motti, and
   prob. to E. mad an earthworm. Cf. Mad, n., Mawk.]
   1. (Zool.) Any nocturnal lepidopterous insect, or any not
      included among the butterflies; as, the luna moth; Io
      moth; hawk moth.
      [1913 Webster]

   2. (Zool.) Any lepidopterous insect that feeds upon garments,
      grain, etc.; as, the clothes moth; grain moth; bee moth.
      See these terms under Clothes, Grain, etc.
      [1913 Webster]

   3. (Zool.) Any one of various other insects that destroy
      woolen and fur goods, etc., esp. the larvae of several
      species of beetles of the genera Dermestes and
      Anthrenus. Carpet moths are often the larvae of
      Anthrenus. See Carpet beetle, under Carpet,
      Dermestes, Anthrenus.
      [1913 Webster]

   4. Anything which gradually and silently eats, consumes, or
      wastes any other thing.
      [1913 Webster]

   Moth blight (Zool.), any plant louse of the genus
      Aleurodes, and related genera. They are injurious to
      various plants.

   Moth gnat (Zool.), a dipterous insect of the genus
      Bychoda, having fringed wings.

   Moth hunter (Zool.), the goatsucker.

   Moth miller (Zool.), a clothes moth. See Miller, 3,
      (a) .

   Moth mullein (Bot.), a common herb of the genus Verbascum
      (Verbascum Blattaria), having large wheel-shaped yellow
      or whitish flowers.
      [1913 Webster]

WordNet (r) 3.0 (2006):

moth miller
    n 1: any of various moths that have powdery wings [syn: moth
         miller, miller]