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. Saliva aids digestion by moistening food and contains enzymes that begin the digestion process. Also known as spit.
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Library > Literature & Language > Dictionary ( sə-lī ' və ) n. The watery mixture of secretions from the salivary and oral mucous glands that lubricates chewed ...
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Saliva is complex fluid, of watery or viscous consistency, produced in and secreted from the major and minor salivary glands in the mouths of humans and most other animals.