barleycorn

bar·ley·corn  (bärl-kôrn)

n.

1. The grain of barley.

2. A unit of measure equal to the length of a grain of barley, or about ¹/₃ inch (0.85 centimeter).

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barleycorn [ˈbɑːlɪˌkɔːn]

n

1. (Life Sciences & Allied Applications / Plants) a grain of barley, or barley itself

2. (Mathematics & Measurements / Units) an obsolete unit of length equal to one third of an inch

Thesaurus

Noun	1.	barleycorn - a grain of barley common barley, Hordeum vulgare - grass yielding grain used for breakfast food and animal feed and in malt beverages caryopsis, grain - dry seed-like fruit produced by the cereal grasses: e.g. wheat, barley, Indian corn
	2.	barleycorn - a grain of barley                     barley food grain, grain, cereal - foodstuff prepared from the starchy grains of cereal grasses pearl barley - barley ground into small round pellets common barley, Hordeum vulgare - grass yielding grain used for breakfast food and animal feed and in malt beverages