definition of
intumesce

[1] #1 intumesce v. [bubble up] 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". wn

[2] #2 intumesce v. [swell, swell up, tumefy, tumesce] expand abnormally; "The bellies of the starving children are swelling". wn