intumesce

(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
bubble up,
(v) expand abnormally
- The bellies of the starving children are swelling
swell up, tumesce, tumefy, swell,

bubble up swell up tumesce tumefy swell

intumescence intumescency intumescent