潰爛

溃烂
kuìlàn
to fester; to ulcerate

CEDICT

to ulcerate; to fester

Wiktionary

身體外表的皮膚，或胃腸道、內臟的上皮等，因細菌侵入、化學物質的腐蝕，或機械性的磨擦，導致組織細胞的壞死、腐爛而出膿的病狀。

重編國語辭典

身體外表的皮膚、黏膜、上皮等，因細菌侵入、化學物質的腐蝕，或機械性的磨擦，導致組織細胞的壞死、腐爛而出膿的病狀。

維基詞典

Entry Composition

1 潰 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 爛 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

殨 huì to fester; to ulcerate (old variant of 潰 huì)
潰膿 huìnóng (of a sore etc) to fester; to ulcerate
潰 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