any of the class of poisonous, blistering compounds, as C5H11Cl2N, analogous in composition to mustard gas but containing nitrogen instead of sulfur: used in the treatment of cancer and similar diseases; mechlorethamine.
Where Does The Phrase “Cut The Mustard” Come From?As with many slang and idiomatic phrases, the origin can be a bit unclear. The first recorded use of the phrase cut the mustard was by O. Henry in 1907, in a story called The Heart of the West: “I looked around and found a proposition that exactly cut the mustard”. The modern sense of the idiom is ‘to succeed; to have the ability to do something; to come …
Origin of nitrogen mustard
First recorded in 1945–50
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
British Dictionary definitions for nitrogen mustard
any of a class of organic compounds resembling mustard gas in their molecular structure. General formula: RN(CH 2 CH 2 Cl) 2, where R is an organic group: important in the treatment of cancer
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
Medicine definitions for nitrogen mustard
Any of various toxic blistering compounds analogous to mustard gas but containing nitrogen rather than sulfur, sometimes used to control or check the growth of neoplastic cells.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.