chy·mo·pa·pa·in 
(kī′mō-pə-pāĭn, -pīĭn)
(kī′mō-pə-pāĭn, -pīĭn)n.
A proteolytic enzyme that is obtained from unripe papaya fruits and is similar to papain. It was formerly used in the United States to treat herniated intervertebral disks.
[CHYM(E) + PAPAIN.]