SHOE n.
A broad, triangular piece of plank placed upon the fluke to give it a better hold in soft ground. -- Shoe block (Naut.), a block with two sheaves, one above the other, and at right angles to each other. -- Shoe bolt, a bolt with a flaring head, for fastening shoes on sleigh runners. -- Shoe pac, a kind of moccasin.…
SIDEROGRAPHY n.
tiplying facsimiles of an engraved steel plate by first rolling over it, when hardened, a soft steel cylinder, and then rolling the cylinder, when hardened, over a soft steel plate, which thus becomes a facsimile of the original. The process has been superseded by electrotypy.
SILVER n. 2 definitions
A soft white metallic element, sonorous, ductile, very malleable, and capable of a high degree of polish. It is found native, and also combined with sulphur, arsenic, antimony, chlorine, etc., in the minerals argentite, proustite, pyrargyrite, ceragyrite, etc. Silver is one of the "noble" metals, so-called, not being e…
SLATE n.
g sulphate of alumina, -- used in the manufacture of alum. -- Bituminous slate (Min.), a soft species of sectile clay slate, impregnated with bitumen. -- Hornblende slate (Min.), a slaty rock, consisting essentially of hornblende and feldspar, useful for flagging on account of its toughness. -- Slate ax or axe, a ma…