Saliva
WordNet
noun
(1) 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
WiktionaryText
Noun
- 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.