caliche
英 [kə'liːtʃɪ]
美[kə'litʃi]
- n. 生硝；钙质层
英英释义
- 1. crust or layer of hard subsoil encrusted with calcium-carbonate occurring in arid or semiarid regions
- 2. nitrate-bearing rock or gravel of the sodium nitrate deposits of Chile and Peru
英文词源
- caliche (n.)
- sodium nitrate deposits in Chile and Peru, 1858, from American Spanish, from Spanish caliche "pebble in a brick," from Latin calx "pebble" (see chalk (n.)).