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Webster 1913 Edition
Bolus
Bo′lus
,Noun.
pl. 
Boluses
. A rounded mass of anything, esp. a large pill. 
Webster 1828 Edition
Bolus
BO'LUS
,Noun.
  Definition 2025
Bolus
Bolus
Translingual
Proper noun
Bolus
- A botanical plant name author abbreviation for botanist Harry Bolus (1834-1911).