Meaning of diazomethane

di•az•o•meth•ane

Pronunciation: (dī-az"ō-meth'ān, -ā"zō-), [key]
— n. Chem.
  1. a yellow, odorless, toxic, explosive gas, CHN, used chiefly as a methylating agent and in organic synthesis.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.