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Side-wheel

Having a paddle wheel on each side; -- said of steam vessels; as, a side-wheel steamer.

Sideboard

A piece of dining-room furniture having compartments and shelves for keeping or displaying articles of table service.

Sidebone

A morbid growth or deposit of bony matter and at the sides of the coronet and coffin bone of a horse.

Sided

Having (such or so many) sides; -- used in composition; as, one-sided; many-sided.

Sideflash

A disruptive discharge between a conductor traversed by an oscillatory current of high frequency (as lightning) and neighboring masses of metal, or between different parts of the same conductor.

Sidehill

The side or slope of a hill; sloping ground; a descent.

Sideline

To render unable to participate in an activity, such as a sporting event; as, the pitcher was sidelined by a groin injury.

Sideling

Inclining to one side; directed toward one side; sloping; inclined; as, sideling ground.

Sidelong

Lateral; oblique; not being directly in front; as, a sidelong glance.

Sidepiece

The jamb, or cheek, of an opening in a wall, as of door or window.

Sideration

The state of being siderated, or planet-struck; esp., blast in plants; also, a sudden and apparently causeless stroke of disease, as in apoplexy or paralysis.

Sidereal

Relating to the stars; starry; astral; as, sidereal astronomy.

Siderealize

To elevate to the stars, or to the region of the stars; to etherealize.

Siderite

Carbonate of iron, an important ore of iron occuring generally in cleavable masses, but also in rhombohedral crystals. It is of a light yellowish brown color. Called also sparry iron, spathic iron. A meteorite consisting solely of metallic iron. An indigo-blue variety of quartz. Formerly, magnetic iron ore, or loadstone.

Siderographical Siderographic

Of or pertaining to siderography; executed by engraved plates of steel; as, siderographic art; siderographic impressions.

Siderography

The art or practice of steel engraving; especially, the process, invented by Perkins, of multiplying 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 The process has been superseded by electrotypy.

Siderolite

A kind of meteorite. See under Meteorite.

Sideromancy

Divination by burning straws on red-hot iron, and noting the manner of their burning.

Sideroscope

An instrument for detecting small quantities of iron in any substance by means of a very delicate combination of magnetic needles.

Siderosis

A sort of pneumonia occuring in iron workers, produced by the inhalation of particles of iron.

Siderostat

An apparatus consisting essentially of a mirror moved by clockwork so as to throw the rays of the sun or a star in a fixed direction; -- a more general term for heliostat.

Sideroxylon

A genus of tropical sapotaceous trees noted for their very hard wood; ironwood.

Sidesaddle

A saddle for women, in which the rider sits with both feet on one side of the animal mounted.

Sidetrack

To transfer to a siding from a main line of track.

Sidewalk

A walk for foot passengers at the side of a street or road; a foot pavement.

Sidewise

A heavy swinging blow from the side, which disables an adversary. On or toward one side; laterally; sideways.

Siding

Attaching one's self to a party.

Sidle

To go or move with one side foremost; to move sidewise; as, to sidle through a crowd or narrow opening.

Siege

To besiege; to beset.

Siegework

A temporary fort or parallel where siege guns are mounted.

Sienna

Clay that is colored red or brown by the oxides of iron or manganese, and used as a pigment. It is used either in the raw state or burnt.

Siennese

Of or pertaining to Sienna, a city of Italy.

Sierra

A ridge of mountain and craggy rocks, with a serrated or irregular outline; as, the Sierra Nevada.

Siesta

A short sleep taken about the middle of the day, or after dinner; a midday nap.

Sieur

Sir; -- a title of respect used by the French.

Sieva

A small variety of the Lima bean (Phaseolus lunatus).

Sieve

A utensil for separating the finer and coarser parts of a pulverized or granulated substance from each other. It consist of a vessel, usually shallow, with the bottom perforated, or made of hair, wire, or the like, woven in meshes.

Sifac

The white indris of Madagascar. It is regarded by the natives as sacred.

Sifflement

The act of whistling or hissing; a whistling sound; sibilation.

Sifilet

The six-shafted bird of paradise. See Paradise bird, under Paradise.

Sift

To separate with a sieve, as the fine part of a substance from the coarse; as, to sift meal or flour; to sift powder; to sift sand or lime.

Sifter

One who, or that which, sifts.

Sigaultian

Pertaining to Sigault, a French physician. See Symphyseotomy.

Sigh

A deep and prolonged audible inspiration or respiration of air, as when fatigued or grieved; the act of sighing.

Sighing

Uttering sighs; grieving; lamenting.

Sight

To take aim by a sight.

Sight-seeing

The act of seeing sights; eagerness for novelties or curiosities.

Sight-seer

One given to seeing sights or noted things, or eager for novelties or curiosities.

Sight-shot

Distance to which the sight can reach or be thrown.

Sighted

Having sight, or seeing, in a particular manner; -- used in composition; as, long-sighted, short-sighted, quick-sighted, sharp-sighted, and the like.

Sightful

Easily or clearly seen; distinctly visible; perspicuous.

Sightless

Lacking sight; without sight; blind.

Sightliness

The state of being sightly; comeliness; conspicuousness.

Sightly

Pleasing to the sight; comely.

Sightsman

One who reads or performs music readily at first sight.

Sigil

A seal; a signature.

Sigillaria

A genus of fossil trees principally found in the coal formation; -- so named from the seallike leaf scars in vertical rows on the surface.

Sigillarid

One of an extinct family of cryptagamous trees, including the genus Sigillaria and its allies.

Sigillated

Decorated by means of stamps; -- said of pottery.

Sigillative

Fit to seal; belonging to a seal; composed of wax.

Sigla

The signs, abbreviations, letters, or characters standing for words, shorthand, etc., in ancient manuscripts, or on coins, medals, etc.

Sigma

The Greek letter /, /, or / (English S, or s). It originally had the form of the English C.

Sigmodont

Any one of a tribe (Sigmodontes) of rodents which includes all the indigenous rats and mice of America. So called from the form of the ridges of enamel on the crowns of the worn molars. Also used adjectively.

Sign

To be a sign or omen.

sign language

A form of language for communicating by use of gestures made by the hands, rather than by speech. It includes alphabets made by hand gestures, as well as proper languages formed from signs. Among the latter is the American Sign Language (ASL), used by the deaf. See also dactylology.

sign off

To terminate a communication, especially one conducted by radio waves; to terminate a broadcast over radio or television; as, this is your reporter in Cairo, signing off.

sign on

To begin a communication, especially one conducted by radio waves.

Signable

Suitable to be signed; requiring signature; as, a legal document signable by a particular person.

Signal

To communicate by signals; as, to signal orders.

Signal to noise Signal to noise ratio

The ratio of the intensity of a signal{2} to the background noise detected by a measuring instrument, especially in a communications channel; the higher the ratio, the more accurately the information contained can be interpreted. The term is applied not only to human communications, but to the detection of information in any system that is being studied to gain knowledge; as, the signal-to-noise ratio of light signals in older optic fibers drops to an unusable level after several miles..

Signalist

One who makes signals; one who communicates intelligence by means of signals.

Signality

The quality or state of being signal or remarkable.

Signalize

To make signal or eminent; to render distinguished from what is common; to distinguish.

Signalman

A man whose business is to manage or display signals; especially, one employed in setting the signals by which railroad trains are run or warned.

Signalment

The act of signaling, or of signalizing; hence, description by peculiar, appropriate, or characteristic marks.

Signate

Having definite color markings.

Signatory

A signer; one who signs or subscribes; as, a conference of signatories.

Signature

To mark with, or as with, a signature or signatures.

Signaturist

One who holds to the doctrine of signatures impressed upon objects, indicative of character or qualities.

Signboard

A board, placed on or before a shop, office, etc., on which ssome notice is given, as the name of a firm, of a business, or the like.

Signer

One who signs or subscribes his name; as, a memorial with a hundred signers.

Signet

A seal; especially, in England, the seal used by the sovereign in sealing private letters and grants that pass by bill under the sign manual; -- called also privy signet.

Signeted

Stamped or marked with a signet.

Significant

That which has significance; a sign; a token; a symbol.

Significate

One of several things signified by a common term.

Signification

The act of signifying; a making known by signs or other means.

Significavit

Formerly, a writ issuing out of chancery, upon certificate given by the ordinary, of a man's standing excommunicate by the space of forty days, for the laying him up in prison till he submit himself to the authority of the church.

Signify

To show by a sign; to communicate by any conventional token, as words, gestures, signals, or the like; to announce; to make known; to declare; to express; as, a signified his desire to be present.

signing

The procedure or process of communicating by use of a sign language.

Signior

Sir; Mr. The English form and pronunciation for the Italian Signor and the Spanish Se/or.

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