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).
Einde O'Callaghan:[nq:1]Short question: Why is the weight unit pounds spelled lbs?[/nq]lb is short for librum, which is Latin for pound. The modern plural is lbs. BTW lbs isn't the spelling of the word, it's the abbreviation.