aero-, aer-, aeri-

(Greek: air, mist, wind)

aerostatic (adjective), more aerostatic, most aerostatic
1. Relating to gases or resembling air; pneumatic: Such aerostatic gases, or compressed gasses, are used to propel an aircraft even under changing atmospheric flight conditions.
2. Pertaining to an aircraft, especially a dirigible: An aerostatic balloon derives its lift from the buoyancy of surrounding air rather than from the motion in the air:
aerostatics (s) (noun) (no plural)
1. The study of gases that deals with the balance of air or other gases, and with the equilibrium of solid bodies: Arthur decided to study aerostatics because he was very interested in the principle of floatation in air.
2. The science of aircraft that are lighter than air: Greg thinks that aerostatics seem to be a fascinating branch of research dealing with dirigibles and balloons, both of which are buoyant, and float or drift in the atmosphere.
aerotaxis, aerotactic
1. A movement of an organism in response to the presence of molecular oxygen.
2. The directed movement of a motile organism towards (positive) or away from (negative) an air-liquid interface, or a concentration gradient of dissolved oxygen.
aerotherapy, aerotherapeutics
Treatment of disease by fresh air, by air of different degrees of pressure or rarity, or by air medicated in various ways.
1. Pertaining to the thermodynamic effects of air and other gases.
2. The branch of dynamics dealing with the study of the relationship between heat and mechnical energy in air and other gases.
3. The study of the relationship of heat and mechanical energy in gases, especially air.
1. Treatment with currents of hot air.
2. Therapeutic use of warmed air currents conveyed over the surface of the body.
aerotitis, barotitis, aero-otitis, aviator's ear, aviation otitis, altitude dysbarism
1. Inflammation of the ear, especially the middle ear, due to failure of the eustachian tube to remain open during sudden changes in barometric pressure, which may occur during flying, diving, or working in a pressure chamber.
2. Ottic barotrauma caused by abrupt atmospheric pressure changes; such as, may affect the crew and passengers of aircraft during flight, particularly during descent.
3. Inflammation of the ear caused by pressure changes when auditory tubes are obstructed which occurs commonly in aviators and divers.
aerotolerant (adjective), more aerotolerant, most aerotolerant
1. Able to grow in the presence of air but deriving energy by fermentation rather than by respiration.
2. Able to survive or to grow slowly in an aerobic environment; said of certain anaerobic micro-organisms.
1. An instrument for measuring the partial pressure of the gases in the blood or other liquid.
2. An instrument for estimating the tension or pressure of a gas.
The theory and process of measuring the partial pressure of gases in blood.
aerotropism (s) (noun), aerotropisms (pl)
1. Movement of an organism toward (positive aerotropism) or away from (negative aerotropism) a supply of air.
2. The growth or movement of an organism toward an air supply; such as, an air bubble in a bacterial culture chamber.
3. The reaction to gases, generally to oxygen, particularly the growth curvature of roots or other parts of plants to changes in oxygen tension.
aerotropolis (air oh TROP uh lis; air oh TRAHP uh lis) (s), aerotropoli (pl)
1. A city in which the layout, infrastructure, and economy are centered around a major airport.
2. An airport city core and an outlying area of business stretching along transportation corridors.

Also called an aviation city or an airport city. In its purest form, the aerotropolis is an economic hub that extends out from a large airport into a surrounding area which consists mostly of distribution centers, office buildings, light manufacturing firms, convention centers, and hotels, all linked to the airport via roads, expressways (aerolinks), and rail lines (aerotrains). This business-centered version of the aerotropolis is also called an air-commerce cluster or an airport cluster.

Although the plural of metropolis is often rendered as metropolises, the plural of aerotropolis isn't aerotropolises; instead, it is aerotropoli. The difference is probably because more people are now using metropoli as the plural of metropolis, a usage change that dictionaries have not incorporated, yet; although it has been in usage since about 1978.

—Compiled from information presented by Paul McFedries at Word Spy.

Etymologically, the problem with the creation of this new word is that the coinage has torn off a piece of metro [tro], "mother" and added it to aero, "air" and then added polis, "city"; making it more complicated than necessary. It would have been better to make the word aeropolis (s), aeropoli (pl), "air city".

A reference to atmospheric (air) pressure and the middle ear.
1. An apparatus for visual examination of the urethra after dilatation by air.
2. A urethroscope which distends the urethra with air for medical inspection.
Visual examination of the urethra when distended with air by using an aerourethroscope.

Quiz If you would like to take self-scoring quizzes over the words in this thematic unit, then click Aero-Quizzes, so you can evaluate your knowledge about some of these "aero-" words.

Cross references of word groups that are related, directly or indirectly, to: "air, wind": aello-; aeolo-; anemo-; atmo-; austro-; flat-, flatu-; phys-; pneo-, -pnea; pneumato-; turb-; vent-; zephyro-.