Definitions for vincristinevɪnˈkrɪs tin
Random House Webster's College Dictionary
an alkaloid, C46H56N4O10, derived from the periwinkle, Vinca rosea, used in treating certain cancers.
Origin of vincristine:
1960–65; < NL Vin(ca) a periwinkle genus + L crist(a)crest+ -ine2
periwinkle plant derivative used as an antineoplastic drug (trade name Oncovin); used to treat cancer of the lymphatic system
A particular drug used in chemotherapy.
U.S. National Library of Medicine
Antitumor alkaloid isolated from Vinca Rosea. (Merck, 11th ed.)