saliva

n. clear watery liquid secreted into the mouth by the salivary glands (aids in taste and swallowing, begins the digestion of starches)

Saliva is the watery and usually frothy substance produced in the mouths of humans and some animals. In animals, saliva is produced in and secreted from the salivary glands.
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Saliva /sa·li·va/ the enzyme-containing secretion of the salivary glands.sal´ivary sa·li·va n. The watery mixture of secretions from the salivary [more]Saliva - Community and Resources

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
(synonym) spit, spittle
(hypernym) secretion
(hyponym) drool, dribble, drivel, slobber
(part-holonym) salivary gland
(substance-meronym) ptyalin
(derivation) salivate

v. salivate, drool