Apothecaries' Unit
- ounce
A unit of apothecary weight equal to 480 grains or one twelfth of a pound.
- troy pound
An apothecary weight equal to 12 ounces or 373.242 grams.
- grain
1/60 dram; equals an avoirdupois grain or 64.799 milligrams.
Also contains
- pennyweight
A unit of apothecary weight equal to 24 grains.