Also known as: lb.
LB has various meanings in the Aviation category. Discover the full forms, definitions, and usage contexts of LB in Aviation.
Unit of avoirdupois weight, equal to 16 ounces, 7,000 grains, or 0.45359237 kg, and of troy and apothecaries' weight, equal to 12 ounces, 5,760 grains, or 0.3732417216 kg.
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