Medical Device
radiotherapy bolus
ra·di·o·ther·a·py bo·lus
Definitions related to radiotherapy bolus:
  • (bolus) A soft mass of chewed food. Alternatively, a single large dose of a medication given intravenously.
    Harvard Dictionary of Health Terms
    Harvard Medical Publishing, 2011
  • A tissue-equivalent material placed in contact with the skin to increase the surface dose and/or compensate for missing tissue. A bolus can also be used to compensate for lack of scatter, such as near the extremities or the head during total-body irradiation.
    NCI Thesaurus
    U.S. National Cancer Institute, 2021
  • Bolus, food that has been chewed and mixed in the mouth with saliva. Chewing helps to reduce food particles to a size readily swallowed; saliva adds digestive enzymes, water, and mucus that help chemically to reduce food particles, hydrate them for taste, and lubricate them for easy swallowing. The...
    Encyclopedia Britannica
    Encyclopedia Britannica, Inc., 2020
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This content should not be used in place of medically-reviewed decision support reference material or professional medical advice. Some terms may have alternate or updated definitions not reflected in this set. The definitions on this page should not be considered complete or up to date.