tu·bo·cu·ra·rine 
(t′bō-k-rärĭn, -rēn′, -ky-, ty′-)
(t′bō-k-rärĭn, -rēn′, -ky-, ty′-)n.
1. An alkaloid that is an active component of curare obtained from the plant Chondrodendron tomentosum.
2. The hydrated chloride form of this alkaloid, C38H44Cl2N2O6, used as a drug to relax skeletal muscles during anesthesia.
[Latin tubus, tube (from the practice of shipping it in bamboo tubes) + curarine (CURARE + -INE2).]