Defn: An oscillating bar in a machine, as the lever of the bellows of a forge.
ROCKSUCKER
Rock"suck`er, n. (Zoöl.)
Defn: A lamprey.
ROCKWEED
Rock"weed`, n. (Bot.)
Defn: Any coarse seaweed growing on sea-washed rocks, especially
Fucus.
ROCKWOOD
Rock"wood`, n. (Min.)
Defn: Ligniform asbestus; also, fossil wood.
ROCKWORK
Rock"work`, n.
1. (Arch.)
Defn: Stonework in which the surface is left broken and rough.