argillaceous

Definitions of argillaceous
1

adj resembling or containing clay

argillaceous rocks”
Synonyms:
clayey
Antonyms:
arenaceous, sandlike, sandy
resembling or containing or abounding in sand; or growing in sandy areas

Sign up, it's free!

Whether you're a student, an educator, or a lifelong learner, Vocabulary.com can put you on the path to systematic vocabulary improvement.