expectorant

This term is primarily used in medical and pharmacological contexts. It describes a specific mechanism of action where mucus is thinned or increased to make it easier to cough up, distinguishing it from a suppressant, which aims to stop the cough reflex entirely.

When used as an adjective, it typically modifies nouns like properties, effects, or agents. In its noun form, it refers to the actual medication, such as a syrup or tablet, used for this purpose.