ARGILLACEOUS
Ar`gil*la"ceous, a. Etym: [L. argillaceus, fr. argilla.]
Defn: Of the nature of clay; consisting of, or containing, argil or
clay; clayey. Argillaceous sandstone (Geol.), a sandstone containing
much clay.
— Argillaceous iron ore, the clay ironstone.
— Argillaceous schist or state. See Argillite.
ARGILLIFEROUS
Ar`gil*lif"er*ous, a. Etym: [L. argilla white clay + -ferous.]
Defn: Producing clay; — applied to such earths as abound with argil.
Kirwan.
ARGILLITE
Ar"gil*lite, n. Etym: [Gr. -lite.] (Min.)
Defn: Argillaceous schist or slate; clay slate. Its colors is bluish or blackish gray, sometimes greenish gray, brownish red, etc. — Ar`gil*lit"ic, a.
ARGILLO-AREENACEOUS
Ar*gil`lo-are`e*na"ceous, a.
Defn: Consisting of, or containing, clay and sand, as a soil.
ARGILLO-CALCAREOUS
Ar*gil`lo-cal*ca"re*ous, a.
Defn: Consisting of, or containing, clay and calcareous earth.