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Erasure

The act of erasing; a scratching out; obliteration.

Erative

Pertaining to the Muse Erato who presided over amatory poetry.

Erato

The Muse who presided over lyric and amatory poetry.

Erbium

A rare earth element of the lanthanide series associated with several other rare elements in the mineral gadolinite from Ytterby in Sweden. Symbol Er. It has atomic number 68 and an atomic weight of 167.26. The pure element is metallic with a bright, silvery luster. It is relatively stable in air, not oxidizing as quickly as some other rare earths. Its salts are rose-colored and give characteristic spectra, and the pink oxide has been added as a colorant in glass and porcelain enamel glazes. Its sesquioxide Er2O3 is called erbia.

Ere

To plow. [Obs.] See Ear, v. t.

Erebus

A place of nether darkness, being the gloomy space through which the souls passed to Hades. See Milton's /Paradise Lost,/ Book II., line 883.

Erectable

Capable of being erected; as, an erectable feather.

Erecter

An erector; one who raises or builds.

Erectile

Capable of being erected; susceptible of being erected of dilated; as, erectile tissue.

erecting

the act of building or putting up.

Erection

The act of erecting, or raising upright; the act of constructing, as a building or a wall, or of fitting together the parts of, as a machine; the act of founding or establishing, as a commonwealth or an office; also, the act of rousing to excitement or courage.

Erective

Making erect or upright; raising; tending to erect.

Erectly

In an erect manner or posture.

Erecto-patent

Having a position intermediate between erect and patent, or spreading.

Erector

One who, or that which, erects.

Erelong

Before the /apse of a long time; soon; -- usually separated, ere long.

Eremacausis

A gradual oxidation from exposure to air and moisture, as in the decay of old trees or of dead animals.

Eremitism

The state of a hermit; a living in seclusion from social life.

Erethism

A morbid degree of excitement or irritation in an organ.

Erewhon

the fictitious land described in the novel Erewhon by Samuel Butler.

Erf

A garden plot, usually about half an acre.

Erg

The unit of work or energy in the C. G. S. system, being the amount of work done by a dyne working through a distance of one centimeter; the amount of energy expended in moving a body one centimeter against a force of one dyne (981 dynes exert the same force as a one gram mass in the earth's gravitational field). One foot pound is equal to 13,560,000 ergs. The absolute Joule is equivalent to 107 ergs, which are equivalent to 0.2389 gram-calories at 15/ C. See also mechanical equivalent of heat under equivalent.

Ergal

Potential energy; negative value of the force function.

Ergat

To deduce logically, as conclusions.

Ergmeter

An instrument for measuring energy in ergs.

Ergo

Therefore; consequently; -- often used in a jocular way.

ergocalciferol

vitamin D2, one of the D vitamins, a group of related substances that prevent rickets.

Ergograph

An instrument for measuring and recording the work done by a single muscle or set of muscles, the rate of fatigue, etc.

Ergometer

A device for measuring, or an instrument for indicating, energy expended or work done; a dynamometer.

Ergon

Work, measured in terms of the quantity of heat to which it is equivalent. same as Erg.

ergonomics

biological science applied to study the relation between workers and their environments.

ergosterol

a plant sterol that is converted into vitamin D by ultraviolet radiation.

Ergot

A diseased condition of rye and other cereals, in which the grains become black, and often spur-shaped. It is caused by a parasitic fungus, Claviceps purpurea.

Ergotic

Pertaining to, or derived from, ergot; as, ergotic acid.

Ergotism

A diseased condition produced by eating rye affected with the ergot fungus.

Ergotized

Affected with the ergot fungus; as, ergotized rye.

Erianthus

a genus of reedlike grasses having spikes crowded in a panicle covered with long silky hairs.

Eric Eriach

A recompense formerly given by a murderer to the relatives of the murdered person.

Erica

A genus of shrubby plants, including the heaths, many of them producing beautiful flowers.

Ericaceous

Belonging to the Heath family, or resembling plants of that family; consisting of heats.

Ericales

an order including the Ericaceae; Clethraceae; Diapensiaceae; Epacridaceae; Lennoaceae; Pyrolaceae; and Monotropaceae.

Ericinol

A colorless oil (quickly becoming brown), with a pleasant odor, obtained by the decomposition of ericolin.

Ericius

The Vulgate rendering of the Hebrew word qip/d, which in the /Authorized Version/ is translated bittern, and in the Revised Version, porcupine.

Ericolin

A glucoside found in the bearberry (and others of the Ericace/), and extracted as a bitter, yellow, amorphous mass.

Eridanus

A long, winding constellation extending southward from Taurus and containing the bright star Achernar.

Erigeron

a cosmopolitan genus of usually perennial herbs with asterlike flowers; the leaves were formerly used medicinally, but now are only occasionally so used.

Erignathus

a genus including the bearded seal, Erignathus barbatus.

Erin

An early, and now a poetic, name of Ireland.

Erinaceidae

a natural family including the true hedgehogs.

Erinaceous

Of the Hedgehog family; like, or characteristic of, a hedgehog.

Erinaceus

the type genus of the family Erinaceidae, composed of hedgehogs.

Eringo

The sea holly. See Eryngo.

Erinite

A hydrous arseniate of copper, of an emerald-green color; -- so called from Erin, or Ireland, where it occurs.

Erinys

An avenging deity; one of the Furies; sometimes, conscience personified.

Eriometer

An instrument for measuring the diameters of minute particles or fibers, from the size of the colored rings produced by the diffraction of the light in which the objects are viewed.

Eriophyllum

a genus of hairy herbs and shrubs of Western North America.

Eriosoma

a genus of plant lice of the family Aphididae, consisting of one type of the wooly aphids.

Eristalis

A genus of dipterous insects whose young (called rat-tailed larv/) are remarkable for their long tapering tail, which spiracles at the tip, and for their ability to live in very impure and salt waters; -- also called drone fly.

Erithacus

a genus of songbirds, consisting of certain of the Old World thrushes.

Eritrea

a province of N Ethiopia on the Red Sea.

Eritrean

of or pertaining to Eritrea; as, Eritrean civil war.

Erlking

A personification, in German and Scandinavian mythology, of a spirit or natural power supposed to work mischief and ruin, esp. to children.

Erme

To grieve; to feel sad.

Ermine

To clothe with, or as with, ermine.

Ermined

Clothed or adorned with the fur of the ermine.

Ern

To stir with strong emotion; to grieve; to mourn. [Corrupted into yearn in modern editions of Shakespeare.]

Erne Ern

A sea eagle, esp. the European white-tailed sea eagle (Hali/etus albicilla).

Erode

To eat into or away; to corrode; as, canker erodes the flesh.

Eroded

Eaten away; gnawed; irregular, as if eaten or worn away.

Erodent

A medicine which eats away extraneous growths; a caustic.

Erogate

To lay out, as money; to deal out; to expend.

erogenous

causing sexual excitement when stimulated.

Eros

Love; the god of love; -- by earlier writers represented as one of the first and creative gods, by later writers as the son of Aphrodite, equivalent to the Latin god Cupid.

Erose

Irregular or uneven as if eaten or worn away.

Erosion

The act or operation of eroding or eating away.

Erosive

That erodes or gradually eats away; tending to erode; corrosive.

Eroteme

A mark indicating a question; a note of interrogation.

Erotesis

A figure of speech by which a strong affirmation of the contrary, is implied under the form of an earnest interrogation, as in the following lines; -

Erotic

An amorous composition or poem.

Erotical Erotic

Of or pertaining to the passion of love; treating of love; amatory.

Err

To wander; to roam; to stray.

Errancy

A wandering; state of being in error.

Errand

A special business intrusted to a messenger; something to be told or done by one sent somewhere for the purpose; often, a verbal message; a commission; as, the servant was sent on an errand; to do an errand. Also, one's purpose in going anywhere.

Errantia

A group of ch/topod annelids, including those that are not confined to tubes. See Ch/topoda.

Errantry

A wandering; a roving; esp., a roving in quest of adventures.

Errata

Plural of erratum. See Erratum.

Erratic

One who deviates from common and accepted opinions; one who is eccentric or preserve in his intellectual character.

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