灰岩

huīyán
limestone (abbr. for 石灰岩 shíhuīyán)

classifier: 塊

CEDICT

Entry Composition

1 灰 huī
  1. ash
  2. dust
  3. lime
  4. gray
  5. discouraged; dejected
=2 岩 yán
  1. cliff
  2. rock
=2 岩 yán variant of 岩 yán
=2 岩 yán variant of 岩 yán
=2 岩 yán variant of 岩 yán