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Argillaceous has 1 synonym. The top synonyms for argillaceous are clayey. Another word for argillaceous is clayey. Browse the full list below.
| Length
| Random | DefinitionA synonym for argillaceous is clayey.
Argillaceous has 1 synonym listed on Thesaurasize.
(adj): (chiefly geology) Pertaining to clay; made of, containing, or resembling clay; clayey.
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