\Mill"er\ (m[i^]l"[~e]r), n.
1. One who keeps or attends a flour mill or gristmill.
2. A milling machine.
3. (Zo["o]l.)
   (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.]
{Miller's thumb}. (Zo["o]l.)
   (a) A small fresh-water fish of the genus {Uranidea}
       (formerly {Cottus}), as the European species ({U.
       gobio}), and the American ({U. gracilis}); -- called
       also {bullhead}.
   (b) A small bird, as the gold-crest, chiff-chaff, and
       long-tailed tit. [Prov. Eng.]