- 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
Substance released into the bloodstream by the zymuth gland in the Axanar species. This substance is much like human lymphatic fluid and is sometimes harvested by other species for such things as vaccines and aphrodisiacs.