caliche

英 [kə'liːtʃɪ] 美 [kə'litʃi]
  • n. 生硝；钙质层
caliche
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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.)).