miller \mill"er\ mi^l"~er, 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
see also:
moth miller miller's thumb uranidea cottus uranidea gobio uranidea gracilis 
bullhead