hal ‧ lu ‧ ci ‧ na ‧ to ‧ ry /həˈluːsənət ə ri, həˈluːsɪnət ə ri $ -tɔːri/ BrE AmE adjective formal
1 . causing hallucinations or resulting from hallucinations:
hallucinatory drugs
2 . using strange images, sounds etc like those experienced in a hallucination:
hallucinatory poetry