ˈ ̷ ̷ˌ ̷ ̷ noun
Etymology: scale (V) + board
1. archaic : thin strips of sheet iron used by printers as leads ; also : thin strips of material (as wood or paperboard) placed in an imposed form before locking up
2.
a. : thin wooden boards once used for book covers
b. : a thin leaf of wood used for veneering