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In digestion, a bolus (from Latin bolus, ball) is a mass of food that (with animals that can chew) has been chewed at the point of swallowing. Under normal circumstances, the bolus then travels down the esophagus to the stomach for digestion.
- "Bolus - Definition and More from the Free Merriam-Webster Dictionary". Merriam-webster.com. Retrieved 2012-02-21.
- "bolus (biology) - Britannica Online Encyclopedia". Britannica.com. Retrieved 2012-02-21.
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