A gauntlet was a type of glove used as a piece of armour.
Torchwood Three discovered a pair of resurrection gauntlets which could bring back the dead. (TV: Everything Changes, They Keep Killing Suzie, Dead Man Walking)
Rassilon possessed a gauntlet which could disintegrate Time Lords. (TV: The End of Time)
Participants of the game of live chess, such as Gantok, used gauntlets which offered limited protection against the electrified chess pieces. (TV: The Wedding of River Song)