Damper
From Tardis Wiki, the free Doctor Who reference
Dampers, (TV: Warriors' Gate [+]Loading...["Warriors' Gate (TV story)"], Forest of the Dead [+]Loading...["Forest of the Dead (TV story)"]) or dampeners, (PROSE: Time Lord Technology [+]Loading...{"page":"56","1":"Time Lord Technology (feature)"}) was a type of technology component.
Dampers were a component of supralight speed warp drive. (TV: Warriors' Gate [+]Loading...["Warriors' Gate (TV story)"])
River Song's sonic screwdriver was fitted with dampers. She claimed that the Doctor would also install them on their own model in the future. (TV: Forest of the Dead [+]Loading...["Forest of the Dead (TV story)"])