硅化木

guīhuàmù
petrified wood (geology)

CEDICT

geology

Entry Composition

1 硅 guī silicon (chemistry)
2 化 huà
  1. to make into
  2. to change into
  3. -ization
  4. to ... -ize
  5. to transform
  6. abbr. for 化學 huàxué
3 木 mù
  1. (bound form) tree
  2. (bound form) wood
  3. unresponsive; numb; wooden