Having substrata.

An underlying layer; a substratum. / The substance lining the bottom edge of an enclosure. / (biochemistry) A substance acted upon, as by an enzyme.

Having very slight furrows.

(obsolete, transitive) To strew or lay under.

Of or pertaining to a substratum. / (linguistics) Specifically, pertaining to a substrate language.

plural of substrate / (health) The calorie dense nutrients including carbohydrates, proteins, and fats.

present participle of substrate

(linguistics) The theory that creoles take their structure from their substrate languages.