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The hard external coat or covering of anything; the hard exterior surface or outer shell; an incrustation; as, a crust of snow. I have known the statute of an emperor quite hid under a crust of dross. Addison. Below this icy crust of conformity, the waters of infidelity lay dark and deep as ever. Prescott.…

spheres imagined to exist between the region of the fixed stars and the primum mobile (or outer circle of the heavens, which by its motion was supposed to carry round all those within it), in order to explain certain movements of the heavently bodies. -- Crystalline lens (Anat.), the capsular lenslike body in the eye,…

The outermost skin or pellicle of a plant, found especially in leaves and young stems.

A water wheel having a vertical axis, and an inner and outer tapering shell, between which are vanes or floats attached usually to both shells, but sometimes only to one.

The act of stripping off the bark, rind, hull, or outer coat.

Extending far back from the front or outer part; of great horizontal dimension (measured backward from the front or nearer part, mouth, etc.); as, a deep cave or recess or wound; a gallery ten seats deep; a company of soldiers six files deep. Shadowing squadrons deep. Milton. Safely in harbor Is the king's ship in the…

ingbone work. See Herringbone, a. -- Diagonal built (Shipbuilding), built by forming the outer skin of two layers of planking, making angles of about 45º with the keel, in opposite directions. -- Diagonal cleavage. See under Cleavage. -- Diagonal molding (Arch.), a chevron or zigzag molding. -- Diagonal rib. (Arch.…

A long robe or outer garment, with long sleeves, worn by the Turks. [Written also doliman.]

The stone or plank forming a step before an outer door.

The flanged outer end of a drawbar; also, a name applied to the drawgear.

A method of armature winding in which the wire is wound upon the outer surface of a cylinder or drum from end to end of the cylinder; -- distinguished from ring winding, etc.

ith. -- Ear trumpet, an instrument to aid in hearing. It consists of a tube broad at the outer end, and narrowing to a slender extremity which enters the ear, thus collecting and intensifying sounds so as to assist the hearing of a partially deaf person. -- Ear vesicle (Zoöl.), a simple auditory organ, occurring in m…

A curious fungus of the genus Geaster, in which the outer coating splits into the shape of a star, and the inner one forms a ball containing the dustlike spores.

The act of shedding, or casting off, an outer cuticular layer, as in the case of serpents, lobsters, etc.; a coming out; as, the ecdysis of the pupa from its shell; exuviation.

Pertaining to, or situated near, the surface; outer; -- opposed to ental. B. G. Wilder.

The outer layer of the blastoderm; the epiblast; the ectoderm.

The outer layer of the blastoderm; epiblast.

The outer transparent layer of protoplasm in a developing ovum.

The joint or bend of the arm; the outer curve in the middle of the arm when bent. Her arms to the elbows naked. R. of Gloucester.

A kind of masonry in which the outer faces of the wall are ashlar, the space between being filled with broken stone and mortar. Cross layers of stone are interlaid as binders. [R.] Weale.