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To insert among others, as a verse in a stanza; specif. (Geol.), to introduce as a bed or stratum, between the layers of a regular series of rocks. Beds of fresh-water shells . . . are intercalated and interstratified with the shale. Mantell.

A dislocation in a stratum; a fault.

ies or is laid or is conceived of as having been laid or placed in its position; a row; a stratum; a layer; as, a lay of stone or wood. Addison. A viol should have a lay of wire strings below. Bacon.

That which is laid; a stratum; a bed; one thickness, course, or fold laid over another; as, a layer of clay or of sand in the earth; a layer of bricks, or of plaster; the layers of an onion.

A layer or stratum. The lowest ledge or row should be of stone. Sir H. Wotton.

ad center. See Dead center, under Dead. -- Line of dip (Geol.), a line in the plane of a stratum, or part of a stratum, perpendicular to its intersection with a horizontal plane; the line of greatest inclination of a stratum to the horizon. -- Line of fire (Mil.), the direction of fire. -- Line of force (Physics), a…

From a lithological point of view; as, to consider a stratum lithologically.

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. They mined the walls. Hayward. Too lazy to cut down these immense trees, the spoilers... had mined them, and placed a quantity of gunpowder in the cavi…

The coming out of a stratum to the surface of the ground. Lyell.

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

The hard stratum of earth that lies below the soil. See Hard pan, under Hard.

(Oil Boring) A stratum of oil sand thick enough to make a well pay.

road embankment of earth round a place, upon which the parapet is raised. It forms the substratum of every permanent fortification. Mahan.

on of wind waves; also (Geol.), a system of parallel ridges on the surface of a sandstone stratum.

A mass or stratum of fragments or rock lying under the alluvium, and derived from the neighboring rock. Lyell.

An imitation of any veined and ornamental stone, as marble, formed by a substratum of finely ground gypsum mixed with glue, the surface of which, while soft, is variegated with splinters of marble, spar, granite, etc., and subsequently colored and polished.

A bed or stratum of shellfish; scalp. [Scot.]

A thin layer or stratum; a narrow vein between two thicker strata; as, a seam of coal.

A stratum lying in a very even manner; a flat, projecting layer of rock.

That stratum of the surface of the soil which is filled with the roots of grass, or any portion of that surface; turf; sward. She there shall dress a sweeter sod Than Fancy's feet have ever trod. Collins.