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).
How many pounds does a gallon of imperial gas weigh. Depends on the density or specific gravity of the gasoline, which can vary lot to lot. An Imperial gallon of water is 10 lb (vs about 8.33 lb for US gallon) and typical gasoline specific gravity is about 0.74, so about 7.4 lb.