PYROMUCIC ALDEHYDE Meaning of PYROMUCIC ALDEHYDE in English /puy"reuh myooh"sik, puy'-/ , Chem.furfural. [ 1785-95; PYRO- + MUCIC (ACID) ] Random House Webster's Unabridged English dictionary. Полный английский словарь Вебстер - Random House . 2012