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 in the manufacture of various agricultural chemicals, rubber products, water repellents, dyes, and drugs.
Origin of pyridinepyr(o)- -id(e) -ine 2