Aërate
A"ër•ate, v. t. [ imp. & p. p. Aërated ; p. pr. & vb. n. Aërating .] [Cf. F. aerer. See Air, v. t.]
1. To combine or charge with gas; usually with carbonic acid gas formerly called fixed air.
"His sparkling sallies bubbled up as from aërated natural fountains." - Carlyle.
2. To supply or impregnate with common air; as to aërate soil; to aërate water.
3. (Physiol.) To expose to the chemical action of air; to oxygenate (the blood) by respiration; to arterialize. Aërated bread, bread raised by charging dough with carbonic acid gas instead of generating the gas in the dough by fermentation.

Aërator
A"ër•a•tor, n. That which supplies with air; esp. an apparatus used for charging mineral waters with gas and in making soda water.

Aërator
A"ër•a•tor, n. That which supplies with air or gas; specif.: (a) An apparatus used for charging mineral waters with gas and in making soda water. (b) A fumigator used to bleach grain, destroying fungi and insects. { A"ër•en•chym, A•ër•en"chy•ma }, n. [NL. aërenchyma. See Aëro-; Enchyma.] (Bot.) A secondary respiratory tissue or modified periderm, found in many aquatic plants and distinguished by the large intercellular spaces.

Aërial sickness
A•ë"ri•al sick"ness. A sickness felt by aëronauts due to high speed of flights and rapidity in changing altitudes, combining some symptoms of mountain sickness and some of seasickness.

Aëriality
A•ë•ri•al"i•ty, n. The state of being aërial; unsubstantiality. [R.] De Quincey.

Aërially
A•ë"ri•al•ly, adv. Like, or from, the air; in an aërial manner. "A murmur heard aërially." Tennyson.

Aëriferous
A•ër•if"er•ous, a. [L. aër air + -ferous: cf. F. aerifère.] Conveying or containing air; air- bearing; as the windpipe is an aëriferous tube.

Aërification
A•ër•i•fi•ca"tion, n. [Cf. F. aerification. See Arify.]
1. The act of combining air with another substance, or the state of being filled with air.
2. The act of becoming aërified, or of changing from a solid or liquid form into an aëriform state; the state of being aëriform.

Aërify
A"ër•i•fy, v. t. [L. aër air + -fly.]
1. To infuse air into; to combine air with.
2. To change into an aëriform state.

Aëro
A"ër•o, n. An aëroplane, airship, or the like. [Colloq.]

Aëro-
A"ër•o-. [Gr.,, air.] The combining form of the Greek word meaning air.

Aërobic
A•ër•o"bic, a. (Biol.) Growing or thriving only in the presence of oxygen; also pertaining to, or induced by, aërobies; as aërobic fermentation. — A•ër•o"bic•al•ly (#), adv.

Aërobies
A"ër•o•bies, n. pl. [ Aëro- + Gr. life.] (Biol.) Microörganisms which live in contact with the air and need oxygen for their growth; as the microbacteria which form on the surface of putrefactive fluids.

Aërobiotic
A•ër•o•bi•ot"ic ( 101), a. (Biol.) Related to, or of the nature of, aërobies; as aërobiotic plants, which live only when supplied with free oxygen.

Aëroboat
A"ër•o•boat, n. [ Aëro- + boat.] A form of hydro- aëroplane; a flying boat.

Aërobus
A"ër•o•bus, n. [ Aëro- + bus.] An aëroplane or airship designed to carry passengers.

Aëroclub
A"ër•o•club, n. [ Aëro- + club.] A club or association of persons interested in aëronautics.

Aërocurve
A"ër•o•curve, n. [ Aëro- + curve.] (Aëronautics) A modification of the aëroplane, having curved surfaces, the advantages of which were first demonstrated by Lilienthal.

Aërocyst
A"ër•o•cyst, n. [ Aëro- + cyst.] (Bot.) One of the air cells of algals.

Aërodonetics
A•ë•ro•do•net"ics, n. [ Aëro- + Gr. shaken, to shake.] (Aëronautics) The science of gliding and soaring flight.

Aërodrome
A"ë•ro•drome, n. [ Aëro- + Gr. a running.] (Aëronautics) (a) A shed for housing an airship or aëroplane. (b) A ground or field, esp. one equipped with housing and other facilities, used for flying purposes. — A•ër•o•drom"ic (#), a.

Aërodynamic
A"ër•o•dy•nam"ic, a. Pertaining to the force of air in motion.

Aërodynamics
A•ër•o•dy•nam"ics, n. [ Aëro- + dynamics: cf. F. aerodynamique.] The science which treats of the air and other gaseous bodies under the action of force, and of their mechanical effects.

Aërofoil
A"ër•o•foil, n. [ Aëro- + foil.] A plane or arched surface for sustaining bodies by its movement through the air; a spread wing, as of a bird.

Aërognosy
A•ër•og"no•sy, n. [ Aëro- + Gr. knowing, knowledge: cf. F. aerognosie.] The science which treats of the properties of the air, and of the part it plays in nature. Craig.

Aërographer
A•ër•og"ra•pher, n. One versed in aëography: an aërologist. { A•ër•o•graph"ic, A•ër•o•graph"ic•al, } a. Pertaining to aërography; aërological.

Aërography
A•ër•og"ra•phy, n. [ Aëro- + -graphy: cf. F. aerographie.] A description of the air or atmosphere; aërology.

Aërogun
A"ër•o•gun, n. [ Aëro- + gun.] A cannon capable of being trained at very high angles for use against aircraft.

Aërohydrodynamic
A•ër•o•hy•dro•dy•nam"ic, a. [ Aëro- + hydrodynamic.] Acting by the force of air and water; as an aërohydrodynamic wheel.

Aërolite
A"ër•o•lite, n. [ Aëro- + -lite: cf. F. aerolithe.] (Meteor.) A stone, or metallic mass, which has fallen to the earth from distant space; a meteorite; a meteoric stone. Some writers limit the word to stony meteorites.

Aërolith
A"ër•o•lith, n. Same as Arolite.

Aërolitic
A•ër•o•lit"ic, a. Of or pertaining to aërolites; meteoric; as aërolitic iron. Booth. { A•ër•o•log"ic, A•ër•o•log"ic•al, } a. Of or pertaining to aërology.

Aërologist
A•ër•ol"o•gist, n. One versed in aërology.

Aërology
A•ër•ol"o•gy, n. [ Aëro- + -logy: cf. F. aerologie.] That department of physics which treats of the atmosphere.

Aëromancy
A"ër•o•man•cy, n. [ Aëro- + -mancy: cf. F. aeromancie.] Divination from the state of the air or from atmospheric substances; also forecasting changes in the weather.

Aëromechanic
A•ër•o•me•chan"ic, n. A mechanic or mechanician expert in the art and practice of aëronautics. { A•ër•o•me•chan"ic, A•ër•o•me•chan"ical }, a. Of or pert. to aëromechanics.

Aëromechanics
A•ër•o•me•chan"ics, n. The science of equilibrium and motion of air or an aëriform fluid, including aërodynamics and aërostatics.

Aërometer
A•ër•om"e•ter, n. [ Aëro- + -meter: cf. F. eromètre.] An instrument for ascertaining the weight or density of air and gases.

Aërometric
A•ër•o•met"ric, a. Of or pertaining to aërometry; as aërometric investigations.

Aërometry
A•ër•om"e•try, n. [ Aëro- + -metry: cf. F. erometrie.] The science of measuring the air, including the doctrine of its pressure, elasticity, rarefaction, and condensation; pneumatics.

Aëronat
A"ër•o•nat, n. [F. aeronat. See Aëro-; Natation.] A dirigible balloon.

Aëronef
A"ër•o•nef, n. [F. aeronef.] A power-driven, heavier-than-air flying machine.

Aërophone
A"ër•o•phone, n. [ Aëro- + Gr. 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
A"ër•o•phyte, n. [ Aëro- + Gr. plant, to grow: cf. F. aerophyte.] (Bot.) A plant growing entirely in the air, and receiving its nourishment from it; an air plant or epiphyte.

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

Aëroplane
A"ër•o•plane, n. [ 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
A"ër•o•plan•ist, n. One who flies in an aëroplane.

Aëroscope
A"ër•o•scope, n. [ Aëro- + Gr. to look out.] (Biol.) An apparatus designed for collecting spores, germs, bacteria, etc., suspended in the air.

Aëroscopy
A•ër•os"co•py, n. [ Aëro- + Gr. a looking out; to spy out.] The observation of the state and variations of the atmosphere.

Aërosiderite
A•ër•o•sid"er•ite, n. [ Aëro- + siderite.] (Meteor.) A mass of meteoric iron.

Aërosphere
A"ër•o•sphere, n. [ Aëro- + sphere: cf. F. aerosphère.] The atmosphere. [R.]

Aërostat
A"ër•o•stat, n. [F. aerostat, fr. Gr. air + placed. See Statics.]
1. A balloon.
2. A balloonist; an aëronaut. {A•ër•o•stat"ic, A•ër•o•stat"ic•al,} a. [ Aëro- + Gr. : cf. F. aerostatique. See Statical, Statics.]
1. Of or pertaining to aërostatics; pneumatic.
2. Aëronautic; as an aërostatic voyage.

Aërostat
A"ër•o•stat, n. (Aëronautics) A passive balloon; a balloon without motive power.

Aërostatics
A•ër•o•stat"ics, n. The science that treats of the equilibrium of elastic fluids, or that of bodies sustained in them. Hence it includes aëronautics.

Aërostation
A•ër•os•ta"tion, n. [Cf. F. aerostation 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. [Obs.]

Aërostation
A•ër•o•sta"tion, n. That part of aëronautics that deals with passive balloons.

Aërotaxis
A"ër•o•tax•is, n. [NL. See Aëro-; Taxis.] (Bacteriology) The positive or negative stimulus exerted by oxygen on aërobic and anaërobic bacteria. — A•ër•o•tac"tic (#), a.

Aëroyacht
A"ër•o•yacht, n. [ Aëro- + yacht.] A form of hydro- aëroplane; a flying boat.

Aëry
A"ër•y, a. [See Air.] Aërial; ethereal; incorporeal; visionary. [Poetic] M. Arnold.

Aëtites
A•ë•ti"tes, n. [L., fr. Gr. (sc. ) stone, fr. eagle.] See Eaglestone.