caliche

英 [kə'liːtʃiː] 美 [kə'liːtʃiː]

• n. 生硝

英英释义

Noun:

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

近反义词

【近义词】

• hardpan 硬质地层