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Definition of: traction
(trak′shən) noun
1. The act of drawing, as by motive power over a surface.
2. The state of being drawn, or the power employed.
3. Physiol. Contraction, as of a muscle.
4. Adhesive or rolling friction, as of wheels on a track. [<Med. L tractio, -onis <L tractus. See TRACE1.]
—trac′tion·al adjective
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