Bible Dictionaries
Barleycorn

Webster's Dictionary

(1):

(n.) Formerly , a measure of length, equal to the average length of a grain of barley; the third part of an inch.

(2):

(n.) A grain or "corn" of barley.

Bibliography Information
Webster, Noah. Entry for 'Barleycorn'. Noah Webster's American Dictionary. https://www.studylight.org/​dictionaries/​eng/​web/​b/barleycorn.html. 1828.