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r pipe is made by bending and welding the edges together, and drawing the thick tube thus formed.

from Slub. Slubbing billy, or Slubbing machine, the machine by which slubs are formed.

so that the flask may be removed from around the sand mold. -- Snap judgment, a judgment formed on the instant without deliberation. -- Snap lock, a lock shutting with a catch or snap. -- Snap riveting, riveting in which the rivets have snapheads formed by a die or swaging tool. -- Snap shot, a quick offhand shot,…

duced in a cavity, deep- toned; as, sonorous rhonchi. Sonorous figures (Physics), figures formed by the vibrations of a substance capable of emitting a musical tone, as when the bow of a violin is drawn along the edge of a piece of glass or metal on which sand is strewed, and the sand arranges itself in figures accordi…

A black substance formed by combustion, or disengaged from fuel in the process of combustion, which rises in fine particles, and adheres to the sides of the chimney or pipe conveying the smoke; strictly, the fine powder, consisting chiefly of carbon, which colors smoke, and which is the result of imperfect combustion.…

A fleshy fruit formed by the consolidation of many flowers with their receptacles, ovaries, etc., as the breadfruit, mulberry, and pineapple.

A special involucre formed of one leaf and inclosing a spadix, as in aroid plants and palms. See the Note under Bract, and Illust. of Spadix.

y a spectrum in which the colors are spaced proportionally to their wave lengths, as when formed by a diffraction grating. -- Ocular spectrum. See Spectrum, 2 (b), above. -- Prismatic spectrum, a spectrum produced by means of a prism. -- Solar spectrum, the spectrum of solar light, especially as thrown upon a screen…

Involving, or formed by, speculation; ideal; theoretical; not established by demonstration. Cudworth.

One of the cells formed by the diivision of the spermospore, each of which is destined to become a spermatozoid; a spermatocyte; a spermatoblast.

A mass or ball of cells formed by the repeated division of a male germinal cell (spermospore), each constituent cell (spermoblast) of which is converted into a spermatozoid; a spermatogemma.

The male germinal or seminal cell, from the breaking up of which the spermoblasts are formed and ultimately the spermatozoids; a spermatospore. Balfour.

A nonplane curve formed by the intersection of the surface of an oblique cone with the surface of a sphere whose center is at the vertex of the cone.

The silken web which is formed by most kinds of spiders, particularly the web spun to entrap their prey. See Geometric spider, Triangle spider, under Geometric, and Triangle.

; also, the plug of a faucet or cock. Spigot and faucet joint, a joint for uniting pipes, formed by the insertion of the end of one pipe, or pipe fitting, into a socket at the end of another.

on, and the membranes of the spinal cord project as an elastic swelling from the gap thus formed.

The secretion formed by the glands of the mouth; spitle; saliva; sputum.

Hernia formed by the spleen.

int, or splent, coal. See Splent coal, under Splent. Splint armor,a kind of ancient armor formed of thin plates of metal, usually overlapping each other and allowing the limbs to move freely. -- Splint bone (Anat.), one of the rudimentary, splintlike metacarpal or metatarsal bones on either side of the cannon bone in…

The slough, or cast skin, of a serpent or other animal. [Obs.] Bacon. Spoil bank, a bank formed by the earth taken from an excavation, as of a canal. -- The spoils system, the theory or practice of regarding public and their emoluments as so much plunder to be distributed among their active partisans by those who are…