Webster's Dictionary, 1913

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Aërometer noun [ Aëro- + -meter : confer French éromètre .] An instrument for ascertaining the weight or density of air and gases.

Aërometric adjective Of or pertaining to aërometry; as, aërometric investigations.

Aërometry noun [ Aëro- + -metry : confer French érométrie .] The science of measuring the air, including the doctrine of its pressure, elasticity, rarefaction, and condensation; pneumatics.

Aëronat noun [ French aéronat . See Aëro- ; Natation .] A dirigible balloon.

Aëronaut noun [ French aéronaute , from Greek ... air + ... sailor. See Nautical .] An aërial navigator; a balloonist.

Aëronautic, Aëronautical adjective [ Confer French aéronauitique .] Pertaining to aëronautics, or aërial sailing.

Aëronautics noun The science or art of ascending and sailing in the air, as by means of a balloon; aërial navigation; ballooning.

Aëronef noun [ French aéronef .] A power-driven, heavier-than-air flying machine.

Aërophobia, Aërophoby noun [ Aëro- + Greek ... fear: confer French aérophobie .] (Medicine) Dread of a current of air.

Aërophone noun [ Aëro- + Greek ... voice.] (a) A form of combined speaking and ear trumpet. (b) An instrument, proposed by Edison, for greatly intensifying speech. It consists of a phonograph diaphragm so arranged that its action opens and closes valves, producing synchronous air blasts sufficient to operate a larger diaphragm with greater amplitude of vibration.

Aërophyte noun [ Aëro- + Greek ... plant, ... to grow: confer French aérophyte .] (Botany) A plant growing entirely in the air, and receiving its nourishment from it; an air plant or epiphyte.

Aëroplane noun [ Aëro- + plane .] A flying machine, or a small plane for experiments on flying, which floats in the air only when propelled through it.

Aëroplane noun [ Aëro- + plane .] (Aëronautics) A light rigid plane used in aërial navigation to oppose sudden upward or downward movement in the air, as in gliding machines; specif., such a plane slightly inclined and driven forward as a lifting device in some flying machines; hence, a flying machine using such a device. These machines are called monoplanes, biplanes, triplanes, or quadruplanes, according to the number of main supporting planes used in their constraction. Being heavier than air they depend for their levitation on motion imparted by one or more propellers actuated by a gasoline engine. They start from the ground by a run on small wheels or runners, and are guided by a steering apparatus consisting of horizontal and vertical movable planes. There are many varieties of form and construction, which in some cases are known by the names of their inventors.

Aëroplanist noun One who flies in an aëroplane.

Aëroscope noun [ Aëro- + Greek ... to look out.] (Biol.) An apparatus designed for collecting spores, germs, bacteria, etc., suspended in the air.

Aëroscopy noun [ Aëro- + Greek ... a looking out; ... to spy out.] The observation of the state and variations of the atmosphere.

Aërosiderite noun [ Aëro- + siderite .] (Meteor.) A mass of meteoric iron.

Aërosphere noun [ Aëro- + sphere : confer French aérosphère .] The atmosphere. [ R.]

Aërostat noun [ French aérostat , from Greek ... air + ... placed. See Statics .]
1. A balloon.

2. A balloonist; an aëronaut.

Aërostat noun (Aëronautics) A passive balloon; a balloon without motive power.

Aërostatic, Aërostatical adjective [ Aëro- + Greek ...: confer French aérostatique . See Statical , Statics .]
1. Of or pertaining to aërostatics; pneumatic.

2. Aëronautic; as, an aërostatic voyage.

Aërostatics noun The science that treats of the equilibrium of elastic fluids, or that of bodies sustained in them. Hence it includes aëronautics.

Aërostation noun [ Confer French aérostation the art of using aërostats .]
1. Aërial navigation; the art of raising and guiding balloons in the air.

2. The science of weighing air; aërostatics. [ Obsolete]

Aërostation noun That part of aëronautics that deals with passive balloons.

Aërotaxis noun [ New Latin See Aëro- ; Taxis .] (Bacteriology) The positive or negative stimulus exerted by oxygen on aërobic and anaërobic bacteria. -- A`ër*o*tac"tic adjective

Aërotherapentics noun [ Aëro- + therapeutics .] (Medicine) Treatment of disease by the use of air or other gases.

Aëroyacht noun [ Aëro- + yacht .] A form of hydro- aëroplane; a flying boat.

Aery noun An aerie.

Aëry adjective [ See Air .] Aërial; ethereal; incorporeal; visionary. [ Poetic] M. Arnold.

Aëtheogamous adjective [ Greek ... unusual ( 'a priv. + ... custom) + ... marriage.] (Botany) Propagated in an unusual way; cryptogamous.

Aëtites noun [ Latin , from Greek ... (sc. ...) stone, from ... eagle.] See Eaglestone .

Afar adverb [ Prefix a- (for on or of ) + far .] At, to, or from a great distance; far away; -- often used with from preceding, or off following; as, he was seen from afar ; I saw him afar off.

The steep where Fame's proud temple shines afar .

Afeard (ȧ*fērd") p. adjective [ Middle English afered , Anglo-Saxon āfǣred , past participle of āfǣran to frighten; ā- (cf. Goth. us- , German er- , orig. meaning out ) + fǣran to frighten. See Fear .] Afraid. [ Obsolete]

Be not afeard ; the isle is full of noises.

Afer noun [ Latin ] The southwest wind. Milton.

Affability noun [ Latin affabilitas : confer French affabilité .] The quality of being affable; readiness to converse; courteousness in receiving others and in conversation; complaisant behavior.

Affability is of a wonderful efficacy or power in procuring love.

Affable adjective [ French affable , Latin affabilis , from affari to speak to; ad + fari to speak. See Fable .]
1. Easy to be spoken to or addressed; receiving others kindly and conversing with them in a free and friendly manner; courteous; sociable.

An affable and courteous gentleman.

His manners polite and affable .

2. Gracious; mild; benign.

A serene and affable countenance.

Syn. -- Courteous; civil; complaisant; accessible; mild; benign; condescending.

Affableness noun Affability.

Affably adverb In an affable manner; courteously.

Affabrous (ăf*fȧ"brŭs) adjective [ Latin affaber workmanlike; ad + faber .] Executed in a workmanlike manner; ingeniously made. [ R.] Bailey.

Affair (ăf*fâr") noun [ Middle English afere , affere , Old French afaire , French affaire , from a faire to do; Latin . ad + facere to do. See Fact , and confer Ado .]
1. That which is done or is to be done; matter; concern; as, a difficult affair to manage; business of any kind, commercial, professional, or public; -- often in the plural. "At the head of affairs ." Junius. "A talent for affairs ." Prescott.

2. Any proceeding or action which it is wished to refer to or characterize vaguely; as, an affair of honor, i. e. , a duel; an affair of love, i. e. , an intrigue.

3. (Mil.) An action or engagement not of sufficient magnitude to be called a battle.

4. Action; endeavor. [ Obsolete]

And with his best affair
Obeyed the pleasure of the Sun.

5. A material object (vaguely designated).

A certain affair of fine red cloth much worn and faded.

Affamish (ăf*făm"ĭsh) transitive verb & i. [ French affamer , from Latin ad + fames hunger. See Famish .] To afflict with, or perish from, hunger. [ Obsolete] Spenser.

Affamishment (-m e nt) noun Starvation. Bp. Hall.

Affatuate transitive verb [ Latin ad + fatuus foolish.] To infatuate. [ Obsolete] Milton.

Affear transitive verb [ Middle English aferen , Anglo-Saxon āf...ran . See Afeard .] To frighten. [ Obsolete] Spenser.

Affect (ăf*fĕkt") transitive verb [ imperfect & past participle Affected ; present participle & verbal noun Affecting .] [ Latin affectus , past participle of afficere to affect by active agency; ad + facere to make: confer French affectere , Latin affectare , freq. of afficere . See Fact .]
1. To act upon; to produce an effect or change upon.

As might affect the earth with cold heat.

The climate affected their health and spirits.

2. To influence or move, as the feelings or passions; to touch.

A consideration of the rationale of our passions seems to me very necessary for all who would affect them upon solid and pure principles.


3. To love; to regard with affection. [ Obsolete]

As for Queen Katharine, he rather respected than affected , rather honored than loved, her.

4. To show a fondness for; to like to use or practice; to choose; hence, to frequent habitually.

For he does neither affect company, nor is he fit for it, indeed.

Do not affect the society of your inferiors in rank, nor court that of the great.

5. To dispose or incline.

Men whom they thought best affected to religion and their country's liberty.

6. To aim at; to aspire; to covet. [ Obsolete]

This proud man affects imperial ...way.

7. To tend to by affinity or disposition.

The drops of every fluid affect a round figure.

8. To make a show of; to put on a pretense of; to feign; to assume; as, to affect ignorance.

Careless she is with artful care,
Affecting to seem unaffected.

Thou dost affect my manners.

9. To assign; to appoint. [ R.]

One of the domestics was affected to his special service.

Syn. -- To influence; operate; act on; concern; move; melt; soften; subdue; overcome; pretend; assume.

Affect noun [ Latin affectus .] Affection; inclination; passion; feeling; disposition. [ Obsolete] Shak.

Affect noun (Psychotherapy) The emotional complex associated with an idea or mental state. In hysteria, the affect is sometimes entirely dissociated, sometimes transferred to another than the original idea.

Affectation noun [ Latin affectatio : confer French affectation .]
1. An attempt to assume or exhibit what is not natural or real; false display; artificial show. "An affectation of contempt." Macaulay.

Affectation is an awkward and forced imitation of what should be genuine and easy, wanting the beauty that accompanies what is natural what is natural.

2. A striving after. [ Obsolete] Bp. Pearson.

3. Fondness; affection. [ Obsolete] Hooker.

Affectationist noun One who exhibits affectation. [ R.] Fitzed. Hall.

Affected (ăf*fĕkt"ĕd) past participle & adjective
1. Regarded with affection; beloved. [ Obsolete]

His affected Hercules.

2. Inclined; disposed; attached.

How stand you affected to his wish?

3. Given to false show; assuming or pretending to possess what is not natural or real.

He is . . . too spruce, too affected , too odd.

4. Assumed artificially; not natural.

Affected coldness and indifference.

5. (Alg.) Made up of terms involving different powers of the unknown quantity; adfected; as, an affected equation.