“The Greek letter pi (3.1415965...) was, according to both Tegan and the First Doctor, the ratio...Pi
“The Fass-jul-Aqq, which meant the Sundering, was a term used by the Ice Warriors and was a...Fass-jul-Aqq
“Tautology was the unnecessary repetition of words that effectively meant the same thing. The...Tautology
“"Tellurian" was a term used by various aliens to refer to humans, or Earthlings specifically...Tellurian
“A Sacred Name was, according to Father Octavian, a name given to a member of the Church when...Sacred Name
“The Transient Beings were mentioned by the Fifth Doctor as having the necessary time sensitivity...Transient Being
This category has the following 5 subcategories, out of 5 total.