HARDPAN
\hˈɑːdpan], \hˈɑːdpan], \h_ˈɑː_d_p_a_n]\
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crust or layer of hard subsoil encrusted with calcium-carbonate occurring in arid or semiarid regions
By Princeton University
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crust or layer of hard subsoil encrusted with calcium-carbonate occurring in arid or semiarid regions
By DataStellar Co., Ltd
By Oddity Software
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SQ10,643
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