溃烂

潰爛
kuìlàn
to fester; to ulcerate

CEDICT

to ulcerate; to fester

Wiktionary

身体外表的皮肤，或胃肠道、内脏的上皮等，因细菌侵入、化学物质的腐蚀，或机械性的磨擦，导致组织细胞的坏死、腐烂而出脓的病状。

重編國語辭典

身体外表的皮肤、黏膜、上皮等，因细菌侵入、化学物质的腐蚀，或机械性的磨擦，导致组织细胞的坏死、腐烂而出脓的病状。

維基詞典

Entry Composition

1 溃 kuì
  1. (bound form) (of floodwaters) to break through a dam or dike
  2. (bound form) to break through (a military encirclement)
  3. (bound form) to be routed; to be overrun; to fall to pieces
  4. (bound form) to fester; to ulcerate
2 烂 làn
  1. soft; mushy
  2. well-cooked and soft
  3. to rot; to decompose
  4. rotten
  5. worn out
  6. chaotic; messy
  7. utterly; thoroughly
  8. crappy; bad

Related entries

㱮 huì to fester; to ulcerate (old variant of 溃 huì)
溃脓 huìnóng (of a sore etc) to fester; to ulcerate
溃 kuì
  1. (bound form) (of floodwaters) to break through a dam or dike
  2. (bound form) to break through (a military encirclement)
  3. (bound form) to be routed; to be overrun; to fall to pieces
  4. (bound form) to fester; to ulcerate