Meaning of nitrosourea

ni•tro•so•u•re•a

Pronunciation: (nī-trō"sō-yoo-rē'u), [key]
— n. Pharm.
  1. any of various lipid-soluble, synthetic or naturally occurring alkylating agents that can cross the blood-brain barrier: used in the treatment of certain brain cancers.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.