noun Pharmacology.
an alkaloid, C 46 H 56 N 4 O 10 , derived from the periwinkle, Vinca rosea, used in the management of leukemias and lymphomas.

1960–65; < Neo-Latin Vin(ca) a periwinkle genus + Latin crist(a) crest + -ine2 Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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World English Dictionary
vincristine (vɪnˈkrɪstiːn)
a cytotoxic drug used in the treatment of leukaemia, derived as an alkaloid from the tropical shrub Madagascar periwinkle (Vinca rosea)
[C20: from New Latin vinca + Latin crista crest + -ine²]

Collins English Dictionary - Complete & Unabridged 10th Edition
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Example sentences
Vincristine, which is an important drug for lymphoma and leukemia, comes from periwinkle.
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