Noun
dematerialisation (countable and uncountable, plural dematerialisations)
the act or process of dematerializing
Apart from the sound that accompanies dematerialisation, in The Web of Fear (1968), the TARDIS console was also seen to have a light that winked on and off during landing, although the more usual indicator of flight is the movement of the central column. Source: Internet
Writer Patrick Ness has described the ship's distinctive dematerialisation noise as "a kind of haunted grinding sound", citation while the Doctor Who Magazine comic strips traditionally use the onomatopoeic phrase "vworp vworp vworp". Source: Internet