Promoting secretion from the mucous membrane of the air passages or facilitating its expulsion (as in "expectorant qualities"). An expectorant is an agent that increases bronchial secretion and facilitates its expulsion.
Promoting secretion from the mucous membrane of the air passages or facilitating its expulsion (as in "expectorant qualities"). An expectorant is an agent that increases bronchial secretion and facilitates its expulsion.