Miller's thumb Meaning, Definition & Usage

Definitions

1. . (Zoöl.) (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.