Boll \Boll\, n. [OE. bolle boll, bowl, AS. bolla. See Bowl a vessel.]

1. The pod or capsule of a plant, as of flax or cotton; a pericarp of a globular form.

2. A Scotch measure, formerly in use: for wheat and beans it contained four Winchester bushels; for oats, barley, and potatoes, six bushels. A boll of meal is 140 lbs. avoirdupois. Also, a measure for salt of two bushels. [Sometimes spelled bole.]

Source: Webster's Revised Unabridged Dictionary (1913)
 

Boll \Boll\, v. i. [imp. & p. p. Bolled.]

To form a boll or seed vessel; to go to seed.

The barley was in the ear, and the flax was bolled. --Ex. ix. 31.

Source: Webster's Revised Unabridged Dictionary (1913)