ˈlōˌfēn, -_fə̇n, ˈlä- noun
( -s )
Etymology: probably from French, from loph- + -ine
: a crystalline nitrogenous base (C 6 H 5 ) 3 C 3 HN 2 that emits light when a solution of it in warm alcoholic potassium hydroxide absorbs oxygen; 2, 4, 5-triphenyl-imidazole