strep·to·zot·o·cin 
(strĕp′tə-zŏtə-sĭn)
(strĕp′tə-zŏtə-sĭn)n.
An antibiotic, C8H15N3O7, produced by an actinomycete (Streptomyces achromogenes), used primarily to treat pancreatic tumors affecting the Islets of Langerhans. Also called streptozocin.
[streptozōticus, epithet of the subspecies from which the antibiotic was isolated (STREPTO- + Greek zōtikos, maintaining life, pertaining to life; see gwei- in the Appendix of Indo-European roots) + -(MY)CIN.]