| backlash | <mechanics> The distance through which one part of connected machinery, as a wheel, piston, or screw, can be moved without moving the connected parts, resulting from looseness in fitting or from wear; also, the jarring or reflex motion caused in badly fitting machinery by irregularities in velocity or a reverse of motion. Origin: Back, adv. + lash. Source: Websters Dictionary (01 Mar 1998) |
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