bolus


Concise Oxford English Dictionary © 2008 Oxford University Press:
bolus /ˈbəʊləs/
noun (pl. boluses)
  • 1 a small rounded mass of a substance, especially of food being swallowed.
  • 2 a large pill used in veterinary medicine.

    Medicine a single dose of a drug given all at once.

– origin C16: via late L. from Gk bōlos ‘clod’.
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