Apothecaries' weight Meaning, Definition & Usage

  1. noun any weight unit used in pharmacy; an ounce is equal to 480 grains and a pound is equal to 12 ounces
    apothecaries' unit.

WordNet


Definitions
  1. the system of weights by which medical prescriptions were formerly compounded. The pound and ounce are the same as in Troy weight; they differ only in the manner of subdivision. The ounce is divided into 8 drams, 24 scruples, 480 grains. See Troy weight.

Webster 1913