intumescency

Definitions of intumescency
  1. noun
    swelling up with blood or other fluids (as with congestion)
    synonyms: intumescence
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    types:
    haematoma, hematoma
    a localized swelling filled with blood
    type of:
    lump, puffiness, swelling
    an abnormal protuberance or localized enlargement
  2. noun
    the increase in volume of certain substances when they are heated (often accompanied by release of water)
    synonyms: intumescence, swelling
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    type of:
    chemical action, chemical change, chemical process
    (chemistry) any process determined by the atomic and molecular composition and structure of the substances involved
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