·noun One who sifts flour or meal.
II. Bolter ·noun A kind of fishing line. ·see Boulter.
III. Bolter ·noun One who bolts; ·esp.: (a) A horse which starts suddenly aside. (b) A man who breaks away from his party.
IV. Bolter ·noun An instrument or machine for separating bran from flour, or the coarser part of meal from the finer; a sieve.