Phobia
Lesterson observed that an examiner, actually the Second Doctor had a phobia regarding the Daleks. (TV: The Power of the Daleks)
Phobias
Chocophobia was the fear of chocolate. (AUDIO: Memory Lane)
Haemophobia was the fear of blood. (TV: The Girl Who Died)
Pantophobia was the fear of everything. (TV: Night Terrors)
Teleportaphobia was a fear of of near-instant transport methods such as teleportation, transmat and T-Mat. (PROSE: Down)
Triskaidekaphobia was a fear of the number 13. (COMIC: A Confusion of Angels)
Xenophobia was, as Ian Chesterton put it, a "dislike for the unlike". (TV: "The Ambush") Cymrophobia was a form of xenophobia against Welsh people. (AUDIO: Superiority Complex)