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Spasm

An involuntary and unnatural contraction of one or more muscles or muscular fibers.

Spastic

Of or pertaining to spasm; spasmodic; especially, pertaining to tonic spasm; tetanic.

Spat

A legging; a gaiter.

Spatangoid

Of or pertaining to the Spatangoidea. One of the Spatangoidea.

Spatangoidea

An order of irregular sea urchins, usually having a more or less heart-shaped shell with four or five petal-like ambulacra above. The mouth is edentulous and situated anteriorly, on the under side.

Spatangus

A genus of heart-shaped sea urchins belonging to the Spatangoidea.

Spate

A river flood; an overflow or inundation.

Spathaceous

Having a spathe; resembling a spathe; spathal.

Spathal

Furnished with a spathe; as, spathal flowers.

Spathe

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.

Spathed

Having a spathe or calyx like a sheath.

Spathic

Like spar; foliated or lamellar; spathose.

Spathose

Having a spathe; resembling a spathe; spatheceous; spathal.

Spatter

To throw something out of the mouth in a scattering manner; to sputter.

Spatterdashes

Coverings for the legs, to protect them from water and mud; long gaiters.

Spattling-poppy

A kind of catchfly (Silene inflata) which is sometimes frothy from the action of captured insects.

Spatula

An implement shaped like a knife, flat, thin, and somewhat flexible, used for spreading paints, fine plasters, drugs in compounding prescriptions, etc. Cf. Palette knife, under Palette.

Spatulate

Shaped like spatula, or like a battledoor, being roundish, with a long, narrow, linear base.

Spavin

A disease of horses characterized by a bony swelling developed on the hock as the result of inflammation of the bones; also, the swelling itself. The resulting lameness is due to the inflammation, and not the bony tumor as popularly supposed.

Spawl

To scatter spittle from the mouth; to spit, as saliva.

Spawling

That which is spawled, or spit out.

Spawn

The ova, or eggs, of fishes, oysters, and other aquatic animals.

Spay

The male of the red deer in his third year; a spade.

Speak

To utter with the mouth; to pronounce; to utter articulately, as human beings.

Speakable

Capable of being spoken; fit to be spoken.

speakeasy

An establishment where alcoholic beverages were sold and drunk illegally, especially one operating during the prohibition era in the U.S. (1920-1932); a tavern or nightclub illegally selling alcoholic beverages.

Speaker

One who speaks. One who utters or pronounces a discourse; usually, one who utters a speech in public; as, the man is a good speaker, or a bad speaker. One who is the mouthpiece of others; especially, one who presides over, or speaks for, a delibrative assembly, preserving order and regulating the debates; as, the Speaker of the House of Commons, originally, the mouthpiece of the House to address the king; the Speaker of a House of Representatives.

Speakership

The office of speaker; as, the speakership of the House of Representatives.

Spear

To shoot into a long stem, as some plants. See Spire.

Spearer

One who uses a spear; as, a spearer of fish.

Spearfish

A large and powerful fish (Tetrapturus albidus) related to the swordfish, but having scales and ventral fins. It is found on the American coast and the Mediterranean. The carp sucker.

Spearhead

The pointed head, or end, of a spear.

Spearmint

A species of mint (Mentha viridis) growing in moist soil. It vields an aromatic oil. See Mint, and Mentha.

Spearwood

An Australian tree (Acacia Doratoxylon), and its tough wood, used by the natives for spears.

Spearwort

A name given to several species of crowfoot (Ranunculus) which have spear-shaped leaves.

Speary

Having the form of a spear.

Specialism

Devotion to a particular and restricted part or branch of knowledge, art, or science; as, medical specialism.

Specialist

One who devotes himself to some specialty; as, a medical specialist, one who devotes himself to diseases of particular parts of the body, as the eye, the ear, the nerves, etc.

Speciality

A particular or peculiar case; a particularity.

Specialization

The act of specializing, or the state of being spezialized.

Specially

In a special manner; particularly; especially.

Species

Visible or sensible presentation; appearance; a sensible percept received by the imagination; an image.

Specifiable

Admitting specification; capable of being specified.

specific

Of or pertaining to a species; characterizing or constituting a species; possessing the peculiar property or properties of a thing which constitute its species, and distinguish it from other things; as, the specific form of an animal or a plant; the specific qualities of a drug; the specific distinction between virtue and vice.

Specific

A specific remedy. See Specific, a., 3.

Specificate

To show, mark, or designate the species, or the distinguishing particulars of; to specify.

specification

The act of specifying or determining by a mark or limit; notation of limits.

Specify

To mention or name, as a particular thing; to designate in words so as to distinguish from other things; as, to specify the uses of a plant; to specify articles purchased.

Specimen

A part, or small portion, of anything, or one of a number of things, intended to exhibit the kind and quality of the whole, or of what is not exhibited; a sample; as, a specimen of a man's handwriting; a specimen of a person's blood; a specimen of painting; aspecimen of one's art.

Speciosity

The quality or state of being specious; speciousness.

Specious

Presenting a pleasing appearance; pleasing in form or look; showy.

Speck

To cause the presence of specks upon or in, especially specks regarded as defects or blemishes; to spot; to speckle; as, paper specked by impurities in the water used in its manufacture.

Speckle

To mark with small spots of a different color from that of the rest of the surface; to variegate with spots of a different color from the ground or surface.

Speckled

Marked or variegated with small spots of a different color from that of the rest of the surface.

Specksioneer

The chief harpooner, who also directs in cutting up the speck, or blubber; -- so called among whalers.

Speckt

A woodpecker. See Speight.

Spectacle

Something exhibited to view; usually, something presented to view as extraordinary, or as unusual and worthy of special notice; a remarkable or noteworthy sight; a show; a pageant; a gazingstock.

Spectacled

Furnished with spectacles; wearing spectacles.

Spectacular

Of or pertaining to a shows; of the nature of a show.

Spectator

One who on; one who sees or beholds; a beholder; one who is personally present at, and sees, any exhibition; as, the spectators at a show.

Spectral

Of or pertaining to a specter; ghosty.

Spectre Specter

Something preternaturally visible; an apparition; a ghost; a phantom.

Spectrobolometer

A combination of spectroscope and bolometer for determining the distribution of energy in a spectrum.

Spectroelectric

Pert. to or designating any form of spark tube the electric discharge within which is used in spectroscopic observations.

Spectrogram

A photograph, map, or diagram of a spectrum.

Spectrograph

An apparatus for photographing or mapping a spectrum. A photograph or picture of a spectrum.

Spectroheliogram

A photograph of the sun made by monochromatic light, usually of the calcium line (k), and showing the sun's faculae and prominences.

Spectroheliograph

An apparatus for making spectroheliograms, consisting of a spectroscopic camera used in combination with a telescope, and provided with clockwork for moving the sun's image across the slit.

Spectrological

Of or pertaining to spectrology; as, spectrological studies or experiments.

Spectrology

The science of spectrum analysis in any or all of its relations and applications.

Spectrometer

A spectroscope fitted for measurements of the luminious spectra observed with it.

Spectrometry

Art or process of using a spectrometer, of any type; -- when used alone, it usually refers to the use of a spectrometer using light in the visible, infrared, or ultraviolet region.

Spectrophone

An instrument constructed on the principle of the photophone and used in spectrum analysis as an adjunct to the spectroscope.

Spectrophotometer

An instrument for measuring or comparing the intensities of the colors of the spectrum.

Spectrophotometry

The art of comparing, photometrically, the brightness of two spectra, wave length by wave length; the use of the spectrophotometer.

Spectroscope

An optical instrument for forming and examining spectra (as that of solar light, or those produced by flames in which different substances are volatilized), so as to determine, from the position of the spectral lines, the composition of the substance.

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