- Star Trek: The Motion Picture
- Star Trek II: The Wrath of Khan
- Star Trek III: The Search for Spock
- Star Trek IV: The Voyage Home
- Star Trek V: The Final Frontier
- Star Trek VI: The Undiscovered Country
- Star Trek Generations
Vulcan phrase that translates to "Vulcans without logic." This name was given by Vulcan elders to those who disagreed with the ancestral teachings. A group of V'tosh ka'tur was encountered by Enterprise NX-01 circa 2151. One of their group, Tavin, believed the "Vulcans without logic" label to be inaccurate. He claimed that they successfully integrate emotion and logic.