2. To purge; as, to scour a horse.
3. To remove by rubbing or cleansing; to sweep along or off;
to carry away or remove, as by a current of water; --
often with off or away.
[I will] stain my favors in a bloody mask, Which,
washed away, shall scour my shame with it. --Shak.
4. [Perhaps a different word; cf. OF. escorre, escourre, It.
scorrere, both fr. L. excurrere to run forth. Cf.
{Excursion}.] To pass swiftly over; to brush along; to
traverse or search thoroughly; as, to scour the coast.
Not so when swift Camilla scours the plain. --Pope.
{Scouring barrel}, a tumbling barrel. See under {Tumbling}.
{Scouring cinder} (Metal.), a basic slag, which attacks the
lining of a shaft furnace. --Raymond.
{Scouring rush}. (Bot.) See {Dutch rush}, under {Dutch}.
{Scouring stock} (Woolen Manuf.), a kind of fulling mill.