quinaldine
noun
quin·al·dine
| \ kwin-ˈal-ˌdēn
, -dən
\
, -dən
\
Medical Definition of quinaldine
: an oily liquid base C10H9N that has a slightly pungent odor, is obtained by condensation of acetaldehyde and aniline and occurs in coal tar, and is used chiefly in the manufacture of dyes and pharmaceuticals