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Definition of Sprag
1. Noun. A chock or bar wedged under a wheel or between the spokes to prevent a vehicle from rolling down an incline.
2. Noun. A wooden prop used to support the roof of a mine.
Definition of Sprag
1. n. A young salmon.
2. n. A billet of wood; a piece of timber used as a prop.
3. v. t. To check the motion of, as a carriage on a steep grade, by putting a sprag between the spokes of the wheel.
4. a. See Sprack,
Definition of Sprag
1. a device used to prevent a vehicle from rolling backward [n -S]
Medical Definition of Sprag
1.
A billet of wood; a piece of timber used as a prop.
See: Spray a branch.