Menthol is the substance that makes something taste and feel cold. Mint sweets, chest rubs, cough drops, the sting of it at the back of the nose.
It comes from mint oil, and it works by a trick: menthol does not lower the temperature of anything, it switches on the nerve endings that report cold, so your mouth believes something has chilled when nothing has. That is why a menthol sweet feels icy and why a chest rub makes breathing feel easier. It gave its name to menthol cigarettes, now banned in a number of countries. The adjective mentholated describes anything it has been added to.
1nounmentholA substance from mint oil that produces a cooling sensation.
“The lozenges are flavoured with menthol and honey.”
Latin
mentha — mint
English, today
menthol
From Latin mentha (“mint”) ol.
Etymology from Wiktionary, CC BY-SA