Saliva vs Hypersalivation - What's the difference?

saliva | hypersalivation |

As nouns the difference between saliva and hypersalivation

is that saliva is (physiology) 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 while hypersalivation is (medicine) an excessive flow of saliva.