troy ounce
1
7.9
- noun
- /trɔɪ aʊns/
- Specialized
:
onza troy
- Gold is typically sold in units of troy ounce, which is approximately 31.1 grams.
Examples
-
In January of 2011, gold was trading just above $1360 per troy ounce.
Blog text (13) -
Silver has not been able to hide behind gold's shadow thus far in 2012, as the metal took a significant tumble from its record high of $49.83 per troy ounce last year.
Blog text (20) -
Actually, gold is measured in troy ounces.
Fiction book (2002) -
I think gold was trading around $350 per troy ounce.
Blog text (13) -
In '06, one troy ounce of silver can buy 4 gallons of gas.
Blog text (1) -
In the case of tiny bars, it is going to be in troy ounces; bigger slabs are marked in kilos (or fragments of).
Blog text (4) -
Initially, most countries have offered one troy ounce coins only, but many series have expanded to offer both smaller and larger versions up to one kilo size containing 32.015 troy ounces of pure silver.
Blog text (27) -
Initially, most countries have offered one troy ounce coins only, but many series have expanded to offer both smaller and larger versions up to one kilo size containing 32.015 troy ounces of pure silver.
Blog text (27) -
In recent years, it held 216 million troy ounces of gold, or more than a fifth of all global monetary gold reserves, making it a bigger bullion depository than Fort Knox.
Blog text (20) -
The jeweler offered to sell the necklace for 1.5 troy ounces of gold.
Synonyms
27
4.1
A weight used for gold and in old medicine, equal to one twelfth of a troy pound
A unit of weight used by old pharmacists that equals 480 grains
Surface Forms
Morphology
The noun–noun compound is compositional: 'troy' names a weight system used for metals and 'ounce' is a unit of weight, so together they denote a specific type of ounce used for precious metals. While the precise gram conversion is specialist information, a B1 learner who knows the constituents will predictably infer it is a particular weighing unit for metals, so the expression is transparent.
Etymology
Troy ounce may come from the old French town of Troyes, where merchants used a special set of weights at market. The troy label stuck to a heavier ounce used for coins and 'precious metals', so today the troy ounce is the standard 'weight' for gold and silver.