a flammable, colorless or pale-yellow liquid base, CHN, having a sharp odor: it is produced in the distillation of coal tar or bone oil and is used in the synthesis of vitamins and drugs, as a solvent, etc.
Origin of pyridinepyr- + -id + -ine
A flammable, colorless or yellowish liquid base, C5H5N, having a penetrating odor and serving as the parent compound of many biologically important derivatives. It is used as a solvent and waterproofing agent and in the manufacture of various drugs and vitamins.
Origin of pyridinepyr(o)– + –id(e) + –ine2.