1 Either an acute injury near the nail or anything that causes the nail to be damaged repetitively (such as playing soccer) can also cause an ingrown nail.  If a member of your family has an ingrown toenail, then you are more likely to develop one, too.
The troy ounce (symbol and abbreviation: ozt) is a non-SI unit of mass commonly used to gauge the weight of precious metals. One troy ounce (ozt) = 31.1034768 grams (g) = 1.09714286 ounces (oz) = 480 grains (gr).
In the imperial system, stone and pound are well known units of measurement of weight (ounce is another such unit). Let us start with ounce as it is the smallest of the three to understand stone and pound. One ounce is one sixteenth of a pound, which means 16 oz= 1 lb (pound) and 1 oz=28.35g. One pound (to differentiate it from money, pound (weight is written as lb) is one fourteenth part of a stone, which means that one stone = 14 pounds. Whereas ounce, which is smaller, is used to refer to measurement of spices, pound is used in the measurement of fruits and vegetables.