Up-and-down and side-to-side movements of the lower jaw, using the teeth to grind food for easier swallowing. During chewing, the tongue shapes food into a lump and saliva lubricates it for swallowing. Chewing softens tough meat or vegetable fibres and exposes them to digestive enzymes.

Variants of CHEWING

chewing or mastication

This entry comes from Encyclopædia Britannica Concise.
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