1. a small rounded mass of a substance, especially of chewed food at the moment of swallowing
2. a large pill or tablet
Usage: medical
3. a single dose of a drug or other medicinal preparation given all at once
Usage: medical

Examples

• The patient had difficulty swallowing the food bolus.
• She chewed her food thoroughly before forming it into a bolus.
• The doctor administered a bolus of medication through the IV.
• The large vitamin bolus was hard to swallow.
• After chewing, the bolus travels down the esophagus to the stomach.
• The nurse prepared a bolus injection for the emergency patient.