Aeriform (a.) Having the form or nature of air, or of an elastic fluid; gaseous. Hence fig.: Unreal.
Aerify (v. t.) To infuse air into; to combine air with.
Aerify (v. t.) To change into an aeriform state.
Aero- () The combining form of the Greek word meaning air.
Aerobies (n. pl.) Microorganisms which live in contact with the air and need oxygen for their growth; as the microbacteria which form on the surface of putrefactive fluids.
Aerobiotic (a.) Related to, or of the nature of, aerobies; as, aerobiotic plants, which live only when supplied with free oxygen.
Aerocyst (n.) One of the air cells of algals.
Aerodynamic (a.) Pertaining to the force of air in motion.
Aerodynamics (n.) The science which treats of the air and other gaseous bodies under the action of force, and of their mechanical effects.
Aerognosy (n.) The science which treats of the properties of the air, and of the part it plays in nature.
Aerographer (n.) One versed in aeography: an aerologist.
Aerographic (a.) Alt. of Aerographical
Aerographical (a.) Pertaining to aerography; aerological.
Aerography (n.) A description of the air or atmosphere; aerology.
Aerohydrodynamic (a.) Acting by the force of air and water; as, an aerohydrodynamic wheel.
Aerolite (n.) A stone, or metallic mass, which has fallen to the earth from distant space; a meteorite; a meteoric stone.
Aerolith (n.) Same as A/rolite.
Aerolithology (n.) The science of aerolites.
Aerolitic (a.) Of or pertaining to aerolites; meteoric; as, aerolitic iron.
Aerologic (a.) Alt. of Aerological
Aerological (a.) Of or pertaining to aerology.
Aerologist (n.) One versed in aerology.
Aerology (n.) That department of physics which treats of the atmosphere.
Aeromancy (n.) Divination from the state of the air or from atmospheric substances; also, forecasting changes in the weather.
Aerometer (n.) An instrument for ascertaining the weight or density of air and gases.
Aerometric (a.) Of or pertaining to aerometry; as, aerometric investigations.
Aerometry (n.) The science of measuring the air, including the doctrine of its pressure, elasticity, rarefaction, and condensation; pneumatics.
Aeronaut (n.) An aerial navigator; a balloonist.
Aeronautic (a.) Alt. of Aeronautical
Aeronautical (a.) Pertaining to aeronautics, or aerial sailing.
Aeronautics (n.) The science or art of ascending and sailing in the air, as by means of a balloon; aerial navigation; ballooning.
Aerophobia (n.) Alt. of Aerophoby
Aerophoby (n.) Dread of a current of air.
Aerophyte (n.) A plant growing entirely in the air, and receiving its nourishment from it; an air plant or epiphyte.
Aeroplane (n.) A flying machine, or a small plane for experiments on flying, which floats in the air only when propelled through it.
Aeroscope (n.) An apparatus designed for collecting spores, germs, bacteria, etc., suspended in the air.
Aeroscopy (n.) The observation of the state and variations of the atmosphere.
Aerose (a.) Of the nature of, or like, copper; brassy.
Aerosiderite (n.) A mass of meteoric iron.
Aerosphere (n.) The atmosphere.
Aerostat (n.) A balloon.
Aerostat (n.) A balloonist; an aeronaut.
Aerostatic (a.) Alt. of Aerostatical
Aerostatical (a.) Of or pertaining to aerostatics; pneumatic.
Aerostatical (a.) Aeronautic; as, an aerostatic voyage.
Aerostatics (n.) The science that treats of the equilibrium of elastic fluids, or that of bodies sustained in them. Hence it includes aeronautics.
Aerostation (n.) Aerial navigation; the art of raising and guiding balloons in the air.
Aerostation (n.) The science of weighing air; aerostatics.
Aeruginous (a.) Of the nature or color of verdigris, or the rust of copper.
Aerugo (n.) The rust of any metal, esp. of brass or copper; verdigris.
Aery (n.) An aerie.
Aery (a.) Aerial; ethereal; incorporeal; visionary.
Aesculapian (a.) Pertaining to Aesculapius or to the healing art; medical; medicinal.
Aesculapius (n.) The god of medicine. Hence, a physician.
Aesculin (n.) Same as Esculin.
Esopian (a.) Of or pertaining to Aesop, or in his manner.
Aesopic (a.) Alt. of Esopic
Esopic (a.) Same as Aesopian.
Aesthesia (n.) Perception by the senses; feeling; -- the opposite of anaesthesia.
Aesthesiometer (n.) Alt. of Esthesiometer
Esthesiometer (n.) 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.
Aesthesis (n.) Sensuous perception.
Aesthesodic (a.) Conveying sensory or afferent impulses; -- said of nerves.
Aesthete (n.) One who makes much or overmuch of aesthetics.
Aesthetic (a.) Alt. of Aesthetical
Aesthetical (a.) Of or Pertaining to aesthetics; versed in aesthetics; as, aesthetic studies, emotions, ideas, persons, etc.
Aesthetican (n.) One versed in aesthetics.
Aestheticism (n.) The doctrine of aesthetics; aesthetic principles; devotion to the beautiful in nature and art.
Aesthetics (n.) Alt. of Esthetics
Esthetics (n.) 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.
Aestho-physiology (n.) The science of sensation in relation to nervous action.
Aestival (a.) Of or belonging to the summer; as, aestival diseases.
Aestivate (v. i.) To spend the summer.
Aestivate (v. i.) To pass the summer in a state of torpor.
Aestivation (n.) The state of torpidity induced by the heat and dryness of summer, as in certain snails; -- opposed to hibernation.
Aestivation (n.) The arrangement of the petals in a flower bud, as to folding, overlapping, etc.; prefloration.
Aestuary (n. & a.) See Estuary.
Aestuous (a.) Glowing; agitated, as with heat.
Aetheogamous (a.) Propagated in an unusual way; cryptogamous.
Aether (n.) See Ether.
Aethiops mineral () Same as Ethiops mineral.
Aethogen (n.) A compound of nitrogen and boro/, which, when heated before the blowpipe, gives a brilliant phosphorescent; boric nitride.
Aethrioscope (n.) An instrument consisting in part of a differential thermometer. It is used for measuring changes of temperature produced by different conditions of the sky, as when clear or clouded.
Aetiological (a.) Pertaining to aetiology; assigning a cause.
Aetiology (n.) The science, doctrine, or demonstration of causes; esp., the investigation of the causes of any disease; the science of the origin and development of things.
Aetiology (n.) The assignment of a cause.
Aetites (n.) See Eaglestone.
Afar (adv.) 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.
Afeard (p. a.) Afraid.
Afer (n.) The southwest wind.
Affability (n.) The quality of being affable; readiness to converse; courteousness in receiving others and in conversation; complaisant behavior.
Affable (a.) Easy to be spoken to or addressed; receiving others kindly and conversing with them in a free and friendly manner; courteous; sociable.
Affable (a.) Gracious; mild; benign.
Affableness (n.) Affability.
Affably (adv.) In an affable manner; courteously.
Affabrous (a.) Executed in a workmanlike manner; ingeniously made.
Affair (n.) 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.
Affair (n.) 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.
Affair (n.) An action or engagement not of sufficient magnitude to be called a battle.
Affair (n.) Action; endeavor.