Hardpan

2 definitions found

From The Collaborative International Dictionary of English v.0.48 [gcide]:

  Hardpan \Hard"pan`\ (h[aum]rd"p[a^]n), n.
     The hard substratum. Same as {Hard pan}, under {Hard}, a.
     [1913 Webster]

From WordNet (r) 2.0 [wn]:



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