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WordNet Word definitions in WordNet
v. move upwards in bubbles, as from the effect of heating; also used metaphorically; "Gases bubbled up from the earth"; "Marx's ideas have bubbled up in many places in Latin America" [syn: bubble up ] expand abnormally; "The bellies of the starving children ...

Wiktionary Word definitions in Wiktionary
vb. 1 To swell or enlarge (abnormally) 2 To bubble up (as the result of heating)

The Collaborative International Dictionary Word definitions in The Collaborative International Dictionary
Intumesce \In`tu*mesce"\, v. i. [imp. & p. p. Intumesced ; p. pr. & vb. n. Intumescing .] [L. intumescere; pref. in- in + tumescere to swell up, incho. fr. tumere to swell. See Tumid .] To enlarge or expand with heat; to swell; specifically, to swell up ...