kwə̇ˈnazəˌlēn, -_lə̇n noun
( -s )
Etymology: International Scientific Vocabulary quin- + azole + -ine; originally formed as German chinazolin
: a yellow crystalline compound C 8 H 6 N 2 with an odor like that of naphthalene regarded as derived from quinoline by substitution of a nitrogen atom for a methylidyne group in the 3-position ; also : a derivative of this compound