Regeneration inhibitor
From Tardis Wiki, the free Doctor Who reference
A Regeneration inhibitor was a type of Dalek weapon, developed during the Last Great Time War. It was added to the gunstick. It prevented Time Lords from regenerating if they were shot by one. (AUDIO: The Conscript) Varga plants were also engineered as regeneration inhibitors capable of killing Time Lords with a touch. (AUDIO: Legion of the Lost)
