argil

a. [ L. argillaceus, fr. argilla. ] Of the nature of clay; consisting of, or containing, argil or clay; clayey. [ 1913 Webster ]

Argillaceous sandstone (Geol.), a sandstone containing much clay. --
Argillaceous iron ore, the clay ironstone. --
Argillaceous schist or
state. See Argillite. [ 1913 Webster ]

a. [ L. argilla white clay + -ferous. ] Producing clay; -- applied to such earths as abound with argil. Kirwan. [ 1913 Webster ]

n. [ Gr. &unr_; clay + -lite. ] (Min.) Argillaceous schist or slate; clay slate. Its colors is bluish or blackish gray, sometimes greenish gray, brownish red, etc. -- Ar`gil*lit"ic, a. [1913 Webster]

a. Consisting of, or containing, clay and sand, as a soil. [ 1913 Webster ]

a. Consisting of, or containing, clay and calcareous earth. [ 1913 Webster ]

a. Containing clay and iron. [ 1913 Webster ]