First Known Use: 1562
Dictionary
bolus
noun bo·lus \ˈbō-ləs\
plural bo·lus·es
Definition of BOLUS
1
: a rounded mass: as a : a large pill b : a soft mass of chewed food
2
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Origin of BOLUS
Late Latin, from Greek bōlos lump
Other Pharmacology Terms
Medical Dictionary
bolus
noun bo·lus \ˈbō-ləs\
plural bo·lus·es
Medical Definition of BOLUS
1
: a rounded mass: as a : a large pill b : a soft mass of chewed food
2
a : a dose of a substance (as a drug) given intravenously b : a large dose of a substance given by injection for the purpose of rapidly achieving the needed therapeutic concentration in the bloodstream <the patient receives a bolus dose to reach the minimum effective analgesic concentration—J. F. Camp> <subcutaneous injection of a premeal bolus of fast-acting insulin>
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