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Division into laminæ, like slate, with the lamination not necessarily parallel to the plane of deposition; -- usually produced by pressure. Basal cleavage, cleavage parallel to the base of a crystal, or to the plane of the lateral axes. -- Cell cleavage (Biol.), multiplication of cells by fission. See Segmentation. -…

e. with cranks set at an angle of 90º with each other. -- Cross bedding (Geol.), oblique lamination of horizontal beds, -- Cross bill. See in the Vocabulary. -- Cross bitt. Same as Crosspiece. -- Cross bond, a form of bricklaying, in which the joints of one stretcher course come midway between those of the stretcher…

of authority; -- used adjectively. Longfellow. -- Devil's apron (Bot.), the large kelp (Laminaria saccharina, and L. longicruris) of the Atlantic ocean, having a blackish, leathery expansion, shaped somewhat like an apron. -- Devil's coachhorse. (Zoöl.) (a) The black rove beetle (Ocypus olens). [Eng.] (b) A large, p…

A dark green or bronze-colored laminated variety of pyroxene, common in certain igneous rocks.

Widening into a lamina or into lateral winglike appendages.

The outer layer of the blastoderm; the ectoderm. See Blastoderm, Delamination.

A loose filmy mass or a thin chiplike layer of anything; a film; flock; lamina; layer; scale; as, a flake of snow, tallow, or fish. "Lottle flakes of scurf." Addison. Great flakes of ice encompassing our boat. Evelyn.

Laminated, but restricted to the variety of laminated structure found in crystalline schist, as mica schist, etc.; schistose.

The act of beating a metal into a thin plate, leaf, foil, or lamina.

; -- called also endoderm, entoderm, and sometimes hypoderm. See Illust. of Blastoderm, Delamination, and Ectoderm.

A laminated, granular, siliceous rocks, often occurring in regions where the diamond is found.

A thin plate or lamina. [Obs.] Chaucer.

A stone. Lapis calaminaris (. Etym: [NL.] (Min.) Calamine. -- Lapis infernalis (. Etym: [L.] Fused nitrate of silver; lunar caustic.

A sweet white efflorescence from dried fronds of kelp, especially from those of the Laminaria saccharina, or devil's apron.

A thin, laminated variety of serpentine, usually of a pale green color.

A continuation of the petiole, extending from the base to the apex of the lamina of a leaf.

Any large seaweed of the genus Laminaria; tangle; kelp. See Kelp.

A kind of feldspar consisting of a laminated intertexture of albite and orthoclase, usually of different colors. -- Per*thit"ic, a.

crystals, with a prismatic angle of nearly 90º, and also in massive forms which are often laminated. It varies in color from white to dark green and black, and includes many varieties differing in color and composition, as diopside, malacolite, salite, coccolite, augite, etc. They are all silicates of lime and magnesia…

The bark of a rosaceous tree (Quillaja Saponaria), native of Chili. The bark is finely laminated, and very heavy with alkaline substances, and is used commonly by the Chilians instead of soap. Also called soap bark.