C64558Level 5
Troy Ounce
**Semantic type:** Quantitative Concept
**Definition:** The non-SI unit of mass equal to 31.103 grams, 20 pennyweight, or 480 grains, or 0.083 pound.
**Synonyms:** - Apothecaries Ounce - International Ounce - International Troy Ounce - [oz_ap] - [oz_tr] - [oz_tr] - ounce - ounce - oz t - oz_ap - oz_tr
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