As a verb materialises
is .
As a noun materialists is
.
materialises
English
Verb
(head)
(materialise)
materialise
English
Verb
(materialis)
References
* L Picknett: Encyclopaedia of the Paranormal (1990) "The dead materialised in full form ..."
* Alistair McLean: (1969) " ... he materialised a taxi out of nowhere."