CHLORPROMAZINE Meaning of CHLORPROMAZINE in English [ klɔ:'prəʊməzɪn , -zi:n ]■ noun Medicine a synthetic drug used as a tranquillizer, sedative, and anti-emetic.Origin1950s: from chloro- + prom(eth)azine . Concise Oxford English vocab. Сжатый оксфордский словарь английского языка. 2004