灰岩 huī yán 🔊 limestone (abbr. for 石灰岩[shi2 hui1 yan2]) + Review this word Meanings huī yán limestone (abbr. for 石灰岩[shi2 hui1 yan2]) Measure word: 块 kuài Its characters 灰huīashHSK 5岩yáncliff Words with 灰岩 石灰岩 shí huī yán limestone 灰岩柳莺 huī yán liǔ yīng limestone leaf warbler (Phylloscopus… 灰岩鹪鹛 huī yán jiāo méi Annam limestone babbler (Gypsophila… 灰岩残丘 huī yán cán qiū mogote (steep-sided pointed hill in…