Tautology

Tautology was the unnecessary repetition of words that effectively meant the same thing. The popular example of this was "ATM machine" when the M already stood for machine, making it "automated teller machine machine."

Luke Rattigan was irritated by people who used tautology, particularly when the Tenth Doctor called his invention the "ATMOS system" when ATMOS already stood for "Atmospheric Omission System." (TV: The Sontaran Stratagem)

The Fourth Doctor found the GlobeSphere company name a bit tautological. (AUDIO: Energy of the Daleks)