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“more argillaceous”
argillaceous (adjective), more argillaceous, most argillaceous
Of the nature of clay; largely composed of clay: Argillaceous rocks or sediments are those that contain very fine-grained soil that is pliable when moist but becomes hard when fired.
This entry is located in the following units:
-aceous, -acea, -aceae, -aceaen, -aceus
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argill-, argillo- +
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