what is saliva? give answer in short from
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watery liquid secreted into the mouth by glands, providing lubrication for chewing and swallowing, and aiding digestion.
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Saliva: a watery secretion in the mouth produced by the salivary glands that aids in the digestion of food. Saliva also serves to moisten and cleanse the mouth, including the tongue and teeth, and contains substances that can play a role in the prevention of infection.
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