Nirmita (P. nimmita; T. sprul pa; C. hua; J. ke; K. hwa 化). Literally something that is "constructed" or "built". In Buddhist texts, it typically refers to something that is "conjured", or something that is percieved as real, but is not actually existing.
Nirmita is translated into Tibetan as trulpa, which is defined in the Rangjung Yeshe dictionary as "magical creation, emanation, [nirmita]; phantom; divinely emanated artisan; apparitional..."
Nirmita is one of the eight similes of illusion, in which context it is often translated as "apparition."