intransitive verb. To swell or expand; enlarge.

intransitive verb. To bubble up, especially from the effect of heating.

To enlarge or expand, as with heat; swell up; become tumid.

intransitive verb. To enlarge or expand with heat; to swell; specifically, to swell up or bubble up under the action of heat, as before the blowpipe.

verb. To swell or enlarge (abnormally)

verb. To bubble up (as the result of heating)

verb. expand abnormally

verb. move upwards in bubbles, as from the effect of heating; also used metaphorically

"The first two are evident, as when it fuses it runs into a globule; the last, by inspecting it before and after the heating with a magnifying glass; sometimes it froths up when heated, and is then said to "intumesce;" or, if it flies to fragments, "decrepitates.""

intumescence  intumescency  intumescent  

intumesced  intumescing  

come up  rise  rise up  surface  

dilate  inflate  swell  

intumesced  intumesces  intumescing