barleycorn Meaning, Definition & Usage

  1. noun a grain of barley
  2. noun a grain of barley
    barley.

WordNet

Bar"ley*corn` noun
Etymology
See Corn.
Definitions
  1. A grain or "corn" of barley.
  2. Formerly , a measure of length, equal to the average length of a grain of barley; the third part of an inch.

Webster 1913