Medical Definition of afferent. : bearing or conducting inward; specifically : conveying impulses toward the central nervous systemâcompare efferent.
Imperial Weight Units. The imperial system of weights, or more correctly the avoirdupois system of weights is the standard system of weight in the United States and is still in common usage in the United Kingdom. The system is based on a pound (lb) of 16 ounces (oz).
British Imperial System - a system of weights and measures based on the foot and pound and second and pint. British system, English system. system of weights and measures - system of measurement for length and weight and duration. avoirdupois unit - any of the units of the avoirdupois system of weights.