HALLUCINOGEN /ˌhæl.uːˈsɪn.ə.dʒən/ Scrabble 18 Words With Friends 24 Definition noun a psychoactive drug that induces hallucinations or altered sensory experiences. — synonyms: hallucinogenic_drug, psychedelic_drug, psychodelic_drug See all 578 words you can make from HALLUCINOGEN → 12-letter words Words starting with H Words ending with N ← Unscramble different letters