intumescence
1. [ noun ] (medicine) swelling up with blood or other fluids (as with congestion)
Synonyms: intumescency
Related terms: swelling hematoma swell
2. [ noun ] (chemistry) the swelling of certain substances when they are heated (often accompanied by release of water)
Synonyms: swelling intumescency
Related terms: chemical_process
Similar spelling:   intumesce
  intumescency
  indumentum