Medical Definition of pound
plural pounds also pound
: any of various units of mass and weight: asa: a unit of troy weight equal to 12 troy ounces or 5760 grains or 0.3732417216 kilogram formerly used in weighing gold, silver, and a few other costly materials—called also b: a unit of avoirdupois weight equal to 16 avoirdupois ounces or 7000 grains or 0.45359237 kilogram—called also
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