Thanks for using this online dictionary, we have been helping millions of people improve their use of the english language with its free online services. English definition of stratum is as below...

Underlie :: Underlie (v. t.) To lie under; to rest beneath; to be situated under; as, a stratum of clay underlies the surface gravel..

Stratum :: Stratum (n.) A bed of earth or rock of one kind, formed by natural causes, and consisting usually of a series of layers, which form a rock as it lies between beds of other kinds. Also used figuratively..

Subsoil :: Subsoil (n.) The bed, or stratum, of earth which lies immediately beneath the surface soil..

Superinpregnation :: Superimpose (v. t.) To lay or impose on something else; as, a stratum of earth superimposed on another stratum..

Fahlband :: Fahlband (n.) A stratum in crystalline rock, containing metallic sulphides..

Mine :: Mine (v. t.) To dig away, or otherwise remove, the substratum or foundation of; to lay a mine under; to sap; to undermine; hence, to ruin or destroy by slow degrees or secret means..

Turf :: Turf (n.) That upper stratum of earth and vegetable mold which is filled with the roots of grass and other small plants, so as to adhere and form a kind of mat; sward; sod..

Undersoil :: Undersoil (n.) The soil beneath the surface; understratum; subsoil.

Superstruct :: Superstatum (n.) A stratum, or layer, above another..

Cledge :: Cledge (n.) The upper stratum of fuller's earth.

Girdle :: Girdle (n.) A thin bed or stratum of stone.

Rampart :: Rampart (n.) A broad embankment of earth round a place, upon which the parapet is raised. It forms the substratum of every permanent fortification..

Seam :: Seam (n.) A thin layer or stratum; a narrow vein between two thicker strata; as, a seam of coal..

Stratus :: Stratum (n.) A bed or layer artificially made; a course.

Strike :: Strike (n.) The horizontal direction of the outcropping edges of tilted rocks; or, the direction of a horizontal line supposed to be drawn on the surface of a tilted stratum. It is at right angles to the dip..

Soil :: Soil (n.) The upper stratum of the earth; the mold, or that compound substance which furnishes nutriment to plants, or which is particularly adapted to support and nourish them..

Outlier :: Outlier (n.) A part of a rock or stratum lying without, or beyond, the main body, from which it has been separated by denudation..

Underclay :: Underclay (n.) A stratum of clay lying beneath a coal bed, often containing the roots of coal plants, especially the Stigmaria..

Jump :: Jump (n.) A dislocation in a stratum; a fault.

Outcrop :: Outcrop (n.) The coming out of a stratum to the surface of the ground.

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