Bolus can also refer to a pastry from the Netherlands.

Bolus hook - an instrument in a Jacquard loom

Bolus (medicine) - the administration of a drug, medication or other substance in the form of a single, large dose

Bolus (digestion) - a ball-shaped mass moving through the digestive tract

Bolus (also Baulus) is an Anatolian village on the site of ancient Berissa