The action of expectorating, of ejecting phlegm or mucus from the throat or lungs by coughing, hawking, or spitting.
That which is expectorated, as phlegm or mucus.
A clear, slightly alkaline liquid secreted into the mouth by the salivary glands and mucous glands, consisting of water, mucin, protein, and enzymes. It moistens the mouth, lubricates ingested food, and begins the breakdown of starches.