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.
The first part of the heat cycle is called proestrus and lasts four to nine days. During proestrus, Dachshunds exhibit symptoms such as swelling of the vulva and vaginal bleeding. The second part of the cycle is called estrus. Estrus is the period of time that mating occurs and can last anywhere from four to 13 days.