camphene
cam.phene \'kam-.fe-n\ n : any of several terpenes related to camphor; esp : a colorless cr ystalline terpene C10H16 used in insecticides
Webster's English Dictionarycam.phene \'kam-.fe-n\ n : any of several terpenes related to camphor; esp : a colorless cr ystalline terpene C10H16 used in insecticides