|2.||an illusory perception of an object, person, etc|
|3.||(in the philosophy of Plato) objective reality as distorted by perception|
|[C13: from Old French fantasme, from Latin phantasma, from Greek; related to Greek phantazein to cause to be seen, from phainein to show]|
phantasm phan·tasm (fān'tāz'əm)
Something apparently seen but having no physical reality; an apparition.
An illusory mental image.