-zin | { n. Also }. [ Piperidine + azote + -ine. ] (Chem.) A crystalline substance, (C2H4NH)2, formed by action of ammonia on ethylene bromide, by reduction of pyrazine, etc. It is a strong base, and is used as a remedy for gout. [ Webster 1913 Suppl. ] Variants: Piperazine |