n. (Zool.) Any one of numerous species of marine annelids of the family Polynoidae, and allies, which have two rows of scales, or elytra, along the back. See Illust. under Chaetopoda. [ 1913 Webster ]

n. 1. The lever or beam of a balance; the lever of a platform scale, to which the poise for weighing is applied. [ 1913 Webster ]

2. A weighing apparatus with a sliding weight, resembling a steelyard. [ 1913 Webster ]

n. [ 3d scale + board. ] 1. (Print.) A thin slip of wood used to justify a page. [ Obs. ] Crabb. [ 1913 Webster ]

2. A thin veneer of leaf of wood used for covering the surface of articles of furniture, and the like. [ 1913 Webster ]

Scaleboard plane, a plane for cutting from a board a wide shaving forming a scaleboard. [ 1913 Webster ]