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of Napier's rods Napier's rods () A set of rods, made of bone or other material, each divided into nine spaces, and containing the numbers of a column of the multiplication table; -- a contrivance of Baron Napier, the inventor of logarithms, for facilitating the operations of ...
) An instrument attached to the wheel of a vehicle, to measure the distance traversed; also, a wheel used by surveyors, which registers the miles and rods traversed. Odometrical (a.) Of or pertaining to the odometer, or to measurements made with it. Odometrous (a.) Serving to measure ...