intumesce

• POS: Verb (intransitive)
• HYPHEN: in=tu=mesce

CIDE DICTIONARY

intumesce, v. i. [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 or bubble up under the action of heat, as before the blowpipe.  [1913 Webster]
"In a higher heat, it intumesces, and melts into a yellowish black mass."  [1913 Webster]

OXFORD DICTIONARY

intumesce, v.intr. swell up.

Derivative

intumescence n. intumescent adj.

Etymology

L intumescere (as IN-(2), tumescere incept. of tumere swell)