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sprag n. 制輪木 制輪木 sprag n 1: a chock or bar wedged under a wheel or between the spokes to prevent a vehicle from rolling down an incline 2: a wooden prop used to support the roof of a mine [synonym: {pitprop}, {sprag}] Sprag \Sprag\, a.
See {Sprack}, a. --Shak. [1913 Webster] Sprag \Sprag\ (spr[a^]g), n. [Cf. Icel. spraka a small flounder.] (Zool.) A young salmon. [Prov. Eng.] [1913 Webster] Sprag \Sprag\, n. [See {Spray} a branch.] A billet of wood; a piece of timber used as a prop. [1913 Webster] Sprag \Sprag\, v. t. [imp. & p. p. {Spragged} (spr[a^]gd); p. pr. & vb. n. {Spragging} (-g[i^]ng).] 1. To check the motion of, as a carriage on a steep grade, by putting a sprag between the spokes of the wheel. --R. S. Poole. [1913 Webster] 2. To prop or sustain with a sprag. [1913 Webster] |
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