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

clayey \clay"ey\, a.
   consisting of clay; abounding with clay; partaking of clay;
   like clay.
   1913 webster

[2] : WordNet (r) 2.0

clayey
     adj 1: resembling or containing clay; "argillaceous rocks" syn: argillaceous
            ant: arenaceous
     2: used of soil compact and fine-grained; "the clayey soil
        was heavy and easily saturated" syn: cloggy, heavy
see also:
argillaceous arenaceous cloggy heavy 

Clayey >> C Words
Clayey, definition of term: Clayey
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