pyridine

English Thesaurus

1. a toxic colorless flammable liquid organic base with a disagreeable odor; usually derived from coal (noun.substance)

hypernym	:	alkali, base,
definition	:	any of various water-soluble compounds capable of turning litmus blue and reacting with an acid to form a salt and water (noun.substance)

hyponym	:	triphosphopyridine,
definition	:	a pyridine ring with three phosphorus groups (noun.substance)