picamar
/ˈpɪkəmɑː/Chemistry. Now rare
noun
A thick, colourless, oily liquid distilled from wood tar; 4-propyl-2,6-dimethoxyphenol, (C3H7)C6H2(OCH3)2OH.
Origin
Mid 19th century; earliest use found in Records of General Science. From German Picamar from classical Latin pic-, pix + amārus bitter. With the form picamare compare French picamare.