Grainer(n.) An infusion of pigeon's dung used by tanners to neutralize the effects of lime and give flexibility to skins; -- called also grains and bate.
Grainer(n.) A knife for taking the hair off skins.
Grainer(n.) One who paints in imitation of the grain of wood, marble, etc.; also, the brush or tool used in graining.

Words within grainer