01 n. A rectangular piece fitting grooves like key seats in a hub and a shaft, so that while the one may slide endwise on the other, both must re…
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1.
A rectangular piece fitting grooves like key seats in a hub and a shaft, so that while the one may slide endwise on the other, both must revolve together; a feather; also, sometimes, a groove to receive such a rectangular piece.
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2.
A long, flexble piece of wood sometimes used as a ruler.