1
: a worker that grains: such as
a
: an operator of a machine for graining lithographic printing plates
b(1)
: a worker who uses a graining comb, roller, sponge, or brush to decorate a metal or wooden surface with a simulated wood grain
(2)
: an operator of a machine for printing lines upon furniture parts to simulate the grain of wood
c
: a worker who softens and grains hides and skins by rubbing grain sides together with a graining board or by operating a graining machine
called also
boarder, dicer
d
: a worker who melts TNT and drains it into graining kettles where it is crystallized by agitation and cooling
2
: a machine or device used in graining: such as
a
: a machine that impresses a grain on boards
b
: a brush or tool used in graining wood or metal
c
: an instrument for graining skins
d
: an evaporating vat in which salt grains from brine
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Merriam-Webster unabridged
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