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dary quills or remiges (Zoöl.), the quill feathers arising from the forearm of a bird and forming a row continuous with the primaries; -- called also secondaries. See Illust. of Bird. -- Secondary rocks or strata (Geol.), those lying between the Primary, or Paleozoic, and Tertiary (see Primary rocks, under Primary); -…

Secreting; performing, or connected with, the office secretion; secernent; as, secretory vessels, nerves. -- n.

Having the figure of a half circle; forming a semicircle. Grew.

Forming or producing seed, or the male generative product of animals or of plants.

A loop forming an eye to a button.

Forming or resembling a sheath or case. Sir T. Browne.

The act or process of forming into sheets, or flat pieces; also, material made into sheets.

-- Shell mound. See under Mound. -- Shell of a boiler, the exterior of a steam boiler, forming a case to contain the water and steam, often inclosing also flues and the furnace; the barrel of a cylindrical, or locomotive, boiler. -- Shell road, a road of which the surface or bed is made of shells, as oyster shells.…

ment for carrying shot. -- Shot cartridge, a cartridge containing powder and small shot, forming a charge for a shotgun. -- Shot garland (Naut.), a wooden frame to contain shot, secured to the coamings and ledges round the hatchways of a ship. -- Shot gauge, an instrument for measuring the diameter of round shot. To…

an amorphous gelatinous substance, Si(HO)4, very unstable and easily dried to silica, but forming many stable salts; -- called also orthosilicic, or normal silicic, acid.

The fine, soft thread produced by various species of caterpillars in forming the cocoons within which the worm is inclosed during the pupa state, especially that produced by the larvæ of Bombyx mori.

r the like, built into a wall at the level of one or more window sills, these sills often forming part of it.

A dish made by mixing wine or cider with milk, and thus forming a soft curd; also, sweetened cream, flavored with wine and beaten to a stiff froth. [Written also syllabub.]

, a bar to which one set of the sinkers is attached. (b) In deep well boring, a heavy bar forming a connection between the lifting rope and the boring tools, above the jars.

one above the other. -- Sister hooks, a pair of hooks fitted together, the shank of one forming a mousing for the other; -- called also match hook. -- Sister of charity, Sister of mercy. (R. C. Ch.) See under Charity, and Mercy.

The quotient of a unit divided by sixty; one of sixty equal parts forming a whole.

Forming or producing parts of the skeleton.

The covering, as of planking or iron plates, outside the framing, forming the sides and bottom of a vessel; the shell; also, a lining inside the framing. Skin friction, Skin resistance (Naut.), the friction, or resistance, caused by the tendency of water to adhere to the immersed surface (skin) of a vessel. -- Skin gr…

Adapted for forming slabs, or for dressing flat surfaces. Slabbing machine, a milling machine.

roofs, and making holes in them for the nails. -- Slate clay (Geol.), an indurated clay, forming one of the alternating beds of the coal measures, consisting of an infusible compound of alumina and silica, and often used for making fire bricks. Tomlinson. -- Slate globe, a globe the surface of which is made of an art…