Eaves board

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(Arch.) an arris fillet, or a thick board with a feather edge, nailed across the rafters at the eaves of a building, to raise the lower course of slates a little, or to receive the lowest course of tiles; - called also eaves catch and eaves lath.

See also: Eaves

Webster's Revised Unabridged Dictionary, published 1913 by G. & C. Merriam Co.