TIG welding. n. 1. (General Engineering) tungsten-electrode inert gas welding: a method of welding in which the arc is maintained by a tungsten electrode and shielded from the access of air by an inert gas.
The blade of the classic Roman stabbing sword, the gladius, was only some two feet long, though in the twilight years of the empire the gladius gave way to the spatha, the long slashing sword of the barbarians. Read More. in tactics: The legion. ...as a team.
Purple martins, Progne subis, are of the swallow family and live in colonies. They are 71/2 inches long and weigh 1.9 ounces with an 111/4-inch wing span. The average purple martin lives two to five years with some living as long as six to seven years.