/həˌluːsɪnəʊˈdʒɛnɪk/
hallucinogen
a drug that causes hallucinations, such as LSD 致幻剂（如麦角酸酰二乙胺）。
a drug, such as LSD, that affects people’s minds and makes them see and hear things that are not really there 致幻剂
adjective
hallucinogenic drugs make people experience hallucinations 引起幻觉的，致幻的