Dispersal

Dispersal is the act of spreading constituents beyond all hope of bringing them back into anything resembling the original form.

In-universe

 * Molecular dispersal was a public method of execution used by the Time Lords. (TV: Arc of Infinity)


 * The Oubliette of Eternity was a similar -- and much more effective -- version used in secret by the Celestial Intervention Agency. (AUDIO: Neverland)


 * The Silurians had a Molecular disperser that could eliminate the Van Allen Radiation Belt from Earth, which would kill humanity. (TV: Doctor Who and the Silurians)


 * The Zygons had a method for dispersing the bodies of their species from a distance, should they be killed in the field. (TV: Terror of the Zygons)


 * Leela's eyes suffered pigmentation dispersal when she looked at an exploding Rutan scout ship, changing her eyes from brown to blue. (TV: Horror of Fang Rock)