Meaning of piperonal

pi•per•o•nal

Pronunciation: (pi-per'u-nal", pī-, pip'ur-u-), [key]
— n. Chem.
  1. a white, crystalline, water-insoluble aldehyde, CHO, which darkens on exposure to light: used chiefly in perfumery and organic synthesis. Also called
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.