1. Plural of pyridine; a class of aromatic organic compounds containing a six-membered ring with one nitrogen atom, used in pharmaceuticals, pesticides, and chemical synthesis.
Usage: chemistry; technical

Examples

• Pyridines are important building blocks in the synthesis of many medications.
• The chemist studied the reactivity of different pyridines in the laboratory.
• Pyridines are found in various pesticide formulations.
• The structure of pyridines makes them useful as ligands in coordination chemistry.
• Researchers developed new pyridines with improved biological activity.