INTUMESCED
Verb
intumesced
simple past tense and past participle of intumesce
Source: Wiktionary
INTUMESCE
In`tu*mesce", v. i. [imp. & p. p. Intumesced; p. pr. & vb. n.
Intumescing.] Etym: [L. intumescere; pref. in- in + tumescere to
swell up, incho. fr. tumere to swell. See Tumid.]
Definition: To enlarge or expand with heat; to swell; specifically, to
swell up or bubble up under the action of heat, as before the
blowpipe.
In a higher heat, it intumesces, and melts into a yellowish black
mass. Kirwan.
Source: Webster’s Unabridged Dictionary 1913 Edition