Definition of "errhine" [er•rhine]

• Promoting or inducing nasal discharge. (adjective)
• A medication that promotes or induces such discharge. (noun)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• "The dry leaves are powdered and used as an errhine, for the cure of headache."
• "Dr. Tully also says it is a deobstruent or alterative, an acrid narcotic, an emetic, an epispastic, and an errhine; found very useful in gout, rheumatism, diseases of lungs, and some complaints of the bowels."
• "The leaves, dried and powdered, have powerful errhine properties."