Saliva, also referred to in various contexts as spit, spittle, drivel, drool, or slobber.
It is the watery and usually frothy substance produced in the mouths of humans and most other animals. Saliva is a component of oral fluid. In mammals, saliva is produced in and secreted from the three pairs of major salivary glands, and hundreds of minor salivary glands. Human saliva is composed of 98% water, while the other 2% consists of other compounds such as electrolytes, mucus, antibacterial compounds, and various enzymes.