A round mass of something, especially of chewed food in the mouth or alimentary canal.
A single, large dose of a drug, especially one in that form.
To take a bolus (dose) of insulin at a mealtime in order to control one's blood glucose level in diabetes.
To administer (a drug) in bolus dosing, that is, dosing in (one or more) boluses.
A small chewy candy made with corn syrup, gelatin, and flavouring.