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>

Browse

May 26, 2015
sacrilegious Hear it
grossly irreverent
Take a 3-minute break and test your skills!
How to use a word that (literally) drives some people nuts.
Test your vocab with our fun, fast game
Ailurophobia, and 9 other unusual fears