Word Study
argentous |
argentry |
argil |
argillaceous |
argillaceous rock |
argilliferous
| argillite
| argillo-areenaceous
| argillo-calcareous
| argillo-ferruginous
| argillous
argilliferous
CIDE DICTIONARY
argilliferous, a. [L. argilla white clay + -ferous.].
Producing clay; -- applied to such earths as abound with argil. Kirwan. [1913 Webster]
For further exploring for "argilliferous" in Webster Dictionary Online