saliva

The watery mixture of secretions from the salivary and oral mucous glands that lubricates chewed food, moistens the oral walls, and contains ptyalin.

In entomology, a neutral alkaline fluid secreted by the salivary glands when these are present, and, in their absence, by the epithelial lining of the esophagus. It has the same property as the saliva of vertebrates in transforming starchy foods into glucose.

Spittle; the mixed secretion of the salivary glands and of the mucous membrane of the mouth, a colorless ropy liquid which normally has an alkaline reaction.

The secretion from the salivary glands.

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.

a clear liquid secreted into the mouth by the salivary glands and mucous glands of the mouth; moistens the mouth and starts the digestion of starches