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audio

the part of a transmitted signal which conveys the sound of the event represented by the signal, such as that of a television program.

audio-lingual

pertaining to a method of teaching language that focuses on listening and speaking.

Audiometer

An instrument by which the power of hearing can be gauged and recorded on a scale.

audiotape

magnetic tape for use in recording sound.

audiovisual

materials using sight or sound to present information; -- usually used in the plural.

Audiphone

An instrument which, placed against the teeth, conveys sound to the auditory nerve and enables the deaf to hear more or less distinctly; a dentiphone.

Audit

To settle or adjust an account.

Audition

The act of hearing or listening; hearing.

Auditive

Of or pertaining to hearing; auditory.

Auditorium

The part of a church, theater, or other public building, assigned to the audience.

Auditory

An assembly of hearers; an audience.

Auf

A changeling or elf child, -- that is, one left by fairies; a deformed or foolish child; a simpleton; an oaf.

Aufklaerung

A philosophic movement of the 18th century characterized by a lively questioning of authority, keen interest in matters of politics and general culture, and an emphasis on empirical method in science. It received its impetus from the unsystematic but vigorous skepticism of Pierre Bayle, the physical doctrines of Newton, and the epistemological theories of Locke, in the preceding century. Its chief center was in France, where it gave rise to the skepticism of Voltaire , the naturalism of Rousseau, the sensationalism of Condillac, and the publication of the /Encyclopedia/ by D'Alembert and Diderot. In Germany, Lessing, Mendelssohn, and Herder were representative thinkers, while the political doctrines of the leaders of the American Revolution and the speculations of Benjamin Franklin and Thomas Paine represented the movement in America.

Augean

Of or pertaining to Augeus, king of Elis, whose stable contained 3000 oxen, and had not been cleaned for 30 years. Hercules cleansed it in a single day.

augend

a number to which another number (the addend) is added.

Auger

A carpenter's tool for boring holes larger than those bored by a gimlet. It has a handle placed crosswise by which it is turned with both hands. A pod auger is one with a straight channel or groove, like the half of a bean pod. A screw auger has a twisted blade, by the spiral groove of which the chips are discharge.

Auget

A priming tube connecting the charge chamber with the gallery, or place where the slow match is applied.

Aught

At all; in any degree.

Augite

A variety of pyroxene, usually of a black or dark green color, occurring in igneous rocks, such as basalt; -- also used instead of the general term pyroxene.

Augitic

Pertaining to, or like, augite; containing augite as a principal constituent; as, augitic rocks.

Augment

Enlargement by addition; increase.

Augmentation

The act or process of augmenting, or making larger, by addition, expansion, or dilation; increase.

Augmentative

A word which expresses with augmented force the idea or the properties of the term from which it is derived; as, dullard, one very dull. Opposed to diminutive.

Augmenter

One who, or that which, augments or increases anything.

Augur

To predict or foretell, as from signs or omens; to betoken; to presage; to infer.

Augural

Of or pertaining to augurs or to augury; betokening; ominous; significant; as, an augural staff; augural books.

Augurial

Relating to augurs or to augury.

Augurship

The office, or period of office, of an augur.

Augury

The art or practice of foretelling events by observing the actions of birds, etc.; divination.

August

The eighth month of the year, containing thirty-one days.

Augustan

Of or pertaining to Augustus C/sar or to his times.

Augustinian

One of a class of divines, who, following St. Augustine, maintain that grace by its nature is effectual absolutely and creatively, not relatively and conditionally.

Augustinian Augustine

A member of one of the religious orders called after St. Augustine; an Austin friar.

Augustness

The quality of being august; dignity of mien; grandeur; magnificence.

Auk

A name given to various species of arctic sea birds of the family Alcid/. The great auk, now extinct, is Alca impennis (or Plautus impennis) . The razor-billed auk is Alca torda. See Puffin, Guillemot, and Murre.

Aularian

At Oxford, England, a member of a hall, distinguished from a collegian.

Auld

Old; as, Auld Reekie (old smoky), i. e., Edinburgh.

Auld light Auld licht

A member of the conservative party in the Church of Scotland in the latter part of the 18th century. Same as Burgher, n., 2.

Auletic

Of or pertaining to a pipe (flute) or piper.

Aulic

The ceremony observed in conferring the degree of doctor of divinity in some European universities. It begins by a harangue of the chancellor addressed to the young doctor, who then receives the cap, and presides at the disputation (also called the aulic).

Aum

Same as Aam.

Aumery

A form of Ambry, a closet; but confused with Almonry, as if a place for alms.

Auncel

A rude balance for weighing, and a kind of weight, formerly used in England.

Aune

A French cloth measure, of different parts of the country (at Paris, 0.95 of an English ell); -- now superseded by the meter.

Aunt

The sister of one's father or mother; -- correlative to nephew or niece. Also applied to an uncle's wife.

Aunty Auntie

A familiar name for an aunt. In the southern United States a familiar term applied to aged negro women.

Aura

Any subtile, invisible emanation, effluvium, or exhalation from a substance, as the aroma of flowers, the odor of the blood, a supposed fertilizing emanation from the pollen of flowers, etc.

Aural

Of or pertaining to the ear; as, aural medicine and surgery.

Aurantiaceous

Pertaining to, or resembling, the Aurantiace/, an order of plants (formerly considered natural), of which the orange is the type.

Aurate

A combination of auric acid with a base; as, aurate or potassium.

Aurelia

The chrysalis, or pupa of an insect, esp. when reflecting a brilliant golden color, as that of some of the butterflies. A genus of jellyfishes. See Discophora.

Aurelian

An amateur collector and breeder of insects, esp. of butterflies and moths; a lepidopterist.

Aureole Aureola

A celestial crown or accidental glory added to the bliss of heaven, as a reward to those (as virgins, martyrs, preachers, etc.) who have overcome the world, the flesh, and the devil.

Aureomycin

a yellow crystalline antibiotic (generic name chlortetracycline) used to treat certain bacterial and rickettsial diseases.

Auric

Of or pertaining to gold.

Aurichalcite

A hydrous carbonate of copper and zinc, found in pale green or blue crystalline aggregations. It yields a kind of brass on reduction.

Auricle

The external ear, or that part of the ear which is prominent from the head. The chamber, or one of the two chambers, of the heart, by which the blood is received and transmitted to the ventricle or ventricles; -- so called from its resemblance to the auricle or external ear of some quadrupeds. See Heart.

Auricled

Having ear-shaped appendages or lobes; auriculate; as, auricled leaves.

Auricula

A species of Primula, or primrose, called also, from the shape of its leaves, bear's-ear. A species of Hirneola (Hirneola auricula), a membranaceous fungus, called also auricula Jud/, or Jew's-ear.

Auricular

Of or pertaining to the ear, or to the sense of hearing; as, auricular nerves.

Auricularia

A kind of holothurian larva, with soft, blunt appendages. See Illustration in Appendix.

Auriculars

A circle of feathers surrounding the opening of the ear of birds.

Auriculated Auriculate

Having ears or appendages like ears; eared. Having lobes or appendages like the ear; shaped like the ear; auricled. Having an angular projection on one or both sides, as in certain bivalve shells, the foot of some gastropods, etc.

Auriferous

Gold-bearing; containing or producing gold.

Auriform

Having the form of the human ear; ear-shaped.

Auriga

The Charioteer, or Wagoner, a constellation in the northern hemisphere, situated between Perseus and Gemini. It contains the bright star Capella.

Aurigal

Of or pertaining to a chariot.

Aurigation

The act of driving a chariot or a carriage.

Aurilave

An instrument for cleansing the ear, consisting of a small piece of sponge on an ivory or bone handle.

Aurin

A red coloring matter derived from phenol; -- called also, in commerce, yellow corallin.

Auriscope

An instrument for examining the condition of the ear.

Auriscopy

Examination of the ear by the aid of the auriscope.

Aurist

One skilled in treating and curing disorders of the ear.

Aurited

Having lobes like the ear; auriculate.

Aurochloride

The trichloride of gold combination with the chloride of another metal, forming a double chloride; -- called also chloraurate.

Aurochs

The European bison (Bison bonasus, or Bison Europ/us), once widely distributed, but now nearly extinct, except where protected in the Lithuanian forests, and perhaps in the Caucasus. It is distinct from the Urus of C/sar, with which it has often been confused.

Aurocyanide

A double cyanide of gold and some other metal or radical; -- called also cyanaurate.

Aurora

The rising light of the morning; the dawn of day; the redness of the sky just before the sun rises.

Auroral

Belonging to, or resembling, the aurora (the dawn or the northern lights); rosy.

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