Bolt″ing, n. 1. A sifting, as of flour or meal.
2. (Law) A private arguing of cases for practice by students, as in the Inns of Court.
Bolting cloth, wire, hair, silk, or other sieve cloth of different degrees of fineness; — used by millers for sifting flour. McElrath. — Bolting hutch, a bin or tub for the bolted flour or meal; (fig.) a receptacle.