Inflected forms: pl. bo·lus·es 1. A round mass: “A dense bolus of trapped dolphins fills the frame” (Kenneth Browser). 2a. A single, relatively large quantity of a substance, such as a dose of a drug, intended for therapeutic use and taken orally. b. A concentrated mass of a substance administered intravenously for diagnostic or therapeutic purposes. 3. A soft mass of chewed food within the mouth or alimentary canal.
ETYMOLOGY:
Medieval Latin blus, from Greek blos, lump of earth.
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