drachm(redirected from fluid drachm)
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A unit of weight: 1/8 oz.; 60 gr, apothecaries' weight; 1/16 oz., avoirdupois weight.
A unit of weight: 1/8 oz.; 60 gr., apothecaries' weight; 1/16 oz., avoirdupois weight.
n See dram.
a unit of weight in the avoirdupois (27.344 grains, 1/16 ounce) or apothecaries' (60 grains, 1/8 ounce) system; symbol .
a unit of liquid measure of the apothecaries' system, containing 60 minims, and equivalent to 3.697 ml. See also Table 4.3. Abbreviated fl. dr.