intumescency intumescence • intumescent · · · Info · Definitions · Synonyms · Characters · · intumescency · · Text Latin · · Script 12 · · Length 5 · · Syllables Definitions · · · (noun) swelling up with blood or other fluids (as with congestion). Synonyms: intumescence. · · Noun Definition 1 (noun) the increase in volume of certain substances when they are heated (often accompanied by release of water). Synonyms: intumescence, swelling. · · Noun Definition 2 Synonyms · · · intumescence · · Synonym 1 swelling · · Synonym 2 Characters · · c latin small letter c U+0063 e latin small letter e U+0065 i latin small letter i U+0069 m latin small letter m U+006D n latin small letter n U+006E s latin small letter s U+0073 t latin small letter t U+0074 u latin small letter u U+0075 y latin small letter y U+0079