Mill"er (?), n.
One who keeps or attends a flour mill or gristmill.
A milling machine.
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.
The eagle ray.
The hen harrier.
Miller's thumb. Zool. (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.]
© Webster 1913.