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3 definitions found

From: DICT.TW English-Chinese Dictionary 英漢字典

 hard·pan /ˈhɑrdˌpæn/
 硬質地層,粘土層,砂礫層

From: Webster's Revised Unabridged Dictionary (1913)

 Hard·pan n. The hard substratum. Same as Hard pan, under Hard, a.
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From: WordNet (r) 2.0

 hardpan
      n : crust or layer of hard subsoil encrusted with
          calcium-carbonate occurring in arid or semiarid regions
          [syn: caliche]