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Ester

An ethereal salt, or compound ether, consisting of an organic radical united with the residue of any oxygen acid, organic or inorganic; thus the natural fats are esters of glycerin and the fatty acids, oleic, etc.

Esthesiometer AEsthesiometer

An instrument to measure the degree of sensation, by determining at how short a distance two impressions upon the skin can be distinguished, and thus to determine whether the condition of tactile sensibility is normal or altered.

Esthetics AEsthetics

The theory or philosophy of taste; the science of the beautiful in nature and art; esp. that which treats of the expression and embodiment of beauty by art.

Estimate

A valuing or rating by the mind, without actually measuring, weighing, or the like; rough or approximate calculation; as, an estimate of the cost of a building, or of the quantity of water in a pond.

estimated

calculated approximately; as, an estimated mass of 25 g.

Estimative

Inclined, or able, to estimate; serving for, or capable of being used in, estimating.

Estimator

One who estimates or values; a valuer.

Estoile

A six-pointed star whose rays are wavy, instead of straight like those of a mullet.

Estonian

a native or inhabitant of Estonia.

Estop

To impede or bar by estoppel.

Estoppel

A stop; an obstruction or bar to one's alleging or denying a fact contrary to his own previous action, allegation, or denial; an admission, by words or conduct, which induces another to purchase rights, against which the party making such admission can not take a position inconsistent with the admission. The agency by which the law excludes evidence to dispute certain admissions, which the policy of the law treats as indisputable.

Estovers

Necessaries or supplies; an allowance to a person out of an estate or other thing for support; as of wood to a tenant for life, etc., of sustenance to a man confined for felony out of his estate, or alimony to a woman divorced out of her husband's estate.

Estrade

A portion of the floor of a room raised above the general level, as a place for a bed or a throne; a platform; a dais.

Estramacon

A straight, heavy sword with two edges, used in the 16th and 17th centuries.

Estrange

To withdraw; to withhold; hence, reflexively, to keep at a distance; to cease to be familiar and friendly with.

Estrangement

The act of estranging, or the state of being estranged; alienation.

Estrapade

The action of a horse, when, to get rid of his rider, he rears, plunges, and kicks furiously.

Estray

Any valuable animal, not wild, found wandering from its owner; a stray.

Estre

The inward part of a building; the interior.

Estreat

To extract or take out from the records of a court, and send up to the court of exchequer to be enforced; -- said of a forfeited recognizance. To bring in to the exchequer, as a fine.

Estrepe

To strip or lay bare, as land of wood, houses, etc.; to commit waste.

Estrepement

A destructive kind of waste, committed by a tenant for life, in lands, woods, or houses.

Estuary

Belonging to, or formed in, an estuary; as, estuary strata.

Estuate

To boil up; to swell and rage; to be agitated.

Estuation

The act of estuating; commotion, as of a fluid; agitation.

Estufa

An assembly room in dwelling of the Pueblo Indians.

Esurine

A medicine which provokes appetites, or causes hunger.

Etacism

The pronunciation of the Greek / (eta) like the Italian e long, that is like a in the English word ate. See Itacism.

etagere

A piece of furniture having a number of uninclosed shelves or stages, one above another, for receiving articles of elegance or use.

Etamine

A light textile fabric, like a fine bunting.

etape

A public storehouse.

Etch

To practice etching; to make etchings.

etched

Cut or impressed into a surface.

Etching

The act, art, or practice of engraving by means of acid which eats away lines or surfaces left unprotected in metal, glass, or the like. See Etch, v. t.

Eternal

One of the appellations of God.

Eternalist

One who holds the existence of matter to be from eternity.

Eternity

Infinite duration, without beginning in the past or end in the future; also, duration without end in the future; endless time.

Eternization

The act of eternizing; the act of rendering immortal or famous.

Etesian

Periodical; annual; -- applied to winds which annually blow from the north over the Mediterranean, esp. the eastern part, for an irregular period during July and August.

ethal

A white waxy solid, C16H33.OH; -- called also cetyl alcohol and cetylic alcohol. See Cetylic alcohol, under Cetylic.

ethane

A gaseous hydrocarbon, C2H6, forming a constituent of ordinary illuminating gas. It is the second member of the paraffin series, and its most important derivatives are common alcohol (ethyl alcohol), acetaldehyde, ether, and acetic acid. Called also dimethyl.

ethanol

The organic compound C2H5.OH, the common alcohol which is the intoxicating agent in beer, wine, and other fermented and distilled liquors; called also ethyl alcohol. It is used pure or denatured as a solvent or in medicines and colognes and cleaning solutions, or mixed in gasoline as a fuel for automobiles, and as a rocket fuel (as in the V-2 rocket).

Ethenic

Pertaining to, derived from. or resembling, ethene or ethylene; as, ethenic ether.

Ethenyl

A trivalent hydrocarbon radical, CH3.C. A univalent hydrocarbon radical of the ethylene series, CH2:CH; -- called also vinyl. See Vinyl.

Etheostomoid

Pertaining to, or like, the genus Etheostoma. Any fish of the genus Etheostoma and related genera, allied to the perches; -- also called darter. The etheostomoids are small and often bright-colored fishes inhabiting the fresh waters of North America. About seventy species are known, including the rare snail darter (Percina tanasi), 3 inches long, found only in the Tennessee River and classified as a threatened species. See Darter.

Ether

A medium of great elasticity and extreme tenuity, once supposed to pervade all space, the interior of solid bodies not excepted, and to be the medium of transmission of light and heat; hence often called luminiferous ether. It is no longer believed that such a medium is required for the transmission of electromagnetic waves; the modern use of the term is mostly a figurative term for empty space, or for literary effect, and not intended to imply the actual existence of a physical medium. However. modern cosmological theories based on quantum field theory do not rule out the possibility that the inherent energy of the vacuum is greater than zero, in which case the concept of an ether pervading the vacuum may have more than metaphoric meaning.

Ethereal

Pertaining to the hypothetical upper, purer air, or to the higher regions beyond the earth or beyond the atmosphere; celestial; as, ethereal space; ethereal regions.

Etherealize

To convert into ether, or into subtile fluid; to saturate with ether.

Etherification

The act or process of making ether; specifically, the process by which a large quantity of alcohol is transformed into ether by the agency of a small amount of sulphuric, or ethyl sulphuric, acid.

Etherin

A white, crystalline hydrocarbon, regarded as a polymeric variety of ethylene, obtained in heavy oil of wine, the residue left after making ether; -- formerly called also concrete oil of wine.

Etherization

The administration of ether to produce insensibility. The state of the system under the influence of ether.

Etherol

An oily hydrocarbon regarded as a polymeric variety of ethylene, produced with etherin.

ethic

the principles of right and wrong that are accepted by an individual or a social group; as, the Puritan ethic.

Ethical Ethic

Of, or belonging to, morals; treating of the moral feelings or duties; containing percepts of morality; moral; as, ethic discourses or epistles; an ethical system; ethical philosophy.

Ethically

According to, in harmony with, moral principles or character.

Ethicist

One who is versed in ethics, or has written on ethics.

Ethics

The science of human duty; the body of rules of duty drawn from this science; a particular system of principles and rules concerting duty, whether true or false; rules of practice in respect to a single class of human actions; as, political or social ethics; medical ethics.

Ethide

Any compound of ethyl of a binary type; as, potassium ethide.

Ethionic

Pertaining to, derived from, or designating, an acid so called.

Ethiopian Ethiop

A native or inhabitant of Ethiopia; also, in a general sense, a negro or black man.

Ethiopic

The language of ancient Ethiopia; the language of the ancient Abyssinian empire (in Ethiopia), now used only in the Abyssinian church. It is of Semitic origin, and is also called Geez.

Ethiops

A black substance; -- formerly applied to various preparations of a black or very dark color.

Ethmoidal Ethmoid

Like a sieve; cribriform. Pertaining to, or in the region of, the ethmoid bone.

Ethmovomerine

Pertaining to the region of the vomer and the base of the ethmoid in the skull.

Ethnarch

The governor of a province or people.

Ethnarchy

The dominion of an ethnarch; principality and rule.

Ethnical Ethnic

Belonging to races or nations; based on distinctions of race; ethnological.

ethnocentric

centered on a specific ethnic group, usually one's own; exhibiting ethnocentrism (in both senses).

ethnocentrism

belief in the superiority of one's own ethnic group.

Ethnography

That branch of knowledge which has for its subject the characteristics of the human family, developing the details with which ethnology as a comparative science deals; descriptive ethnology. See Ethnology.

Ethnologically

In an ethnological manner; by ethnological classification; as, one belonging ethnologically to an African race.

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