Bolus definition

bōləs
Frequency:
A round mass.
noun
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A soft mass of chewed food within the mouth or digestive tract.
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A single, relatively large quantity of a substance, such as a dose of a drug, intended for therapeutic use and taken orally.
noun
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A concentrated mass of a substance administered intravenously for diagnostic or therapeutic purposes.
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A small, round lump or mass, as of chewed food.
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(med.) A mass injected into a blood vessel, as an opaque contrast medium or a radioactive tracer.
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(vet.med.) A large pill.
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A round mass of something, especially of chewed food in the mouth or alimentary canal.
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A single, large dose of a drug, especially one in that form.
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A botanical plant name author abbreviation for botanist Harry Bolus (1834-1911).
pronoun
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Other Word Forms

Noun

Singular:
bolus
Plural:
boluses

Origin of bolus

  • Medieval Latin bōlus from Greek bōlos lump of earth

    From American Heritage Dictionary of the English Language, 5th Edition

  • From Late Latin bōlus (“clod of earth, lump”), from Ancient Greek βωλος (bōlos, “clod, lump”).

    From Wiktionary