(in troy weight) a unit of 24 grains or 1/20 of an ounce (1.555 grams).Abbr.:dwt,pwt [1350–1400; Middle English; Old Englishpenega gewihte] Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights...
Ounce (oz) is a unit of Weight used in Standard system. Pennyweights: A Unit of WeightPennyweights are a unit of weight that are used for measuring precious metals, such as gold, silver and platinum. Pennyweights are derived from the English word penny, which was the name of a coin ...
Troy ounces are a unit of weight that are used for measuring precious metals, such as gold, silver and platinum. Troy ounces are derived from the French word once, which was the name of a unit of weight used in the Middle Ages. The symbol for troy ounce is oz t....