Aerial PhotographyThe taking of photographs from the air with a camera mounted on an aircraft.
aerial triangulationThe process of developing a network of horizontal and vertical position from a group of known positions using measurements taken from aerial photographs…
AERMODA refined, steady-state plume model that incorporates air dispersion on the basis of a state-of-the-art planetary boundary layer turbulence structure and…
AeroallergensAny of a variety of allergens such as pollens, grasses, or dust carried by winds.
AerobeA microorganism that grows in the presence of oxygen. See Anaerobe.
AerobicIn biochemistry, reactions that need oxygen to happen or happen when oxygen is present.
Aerobic BacteriaMicroorganisms that require free oxygen, or air, to live, and that which contribute to the decomposition of organic material in soil or composting systems.
aerobic metabolismA chemical process in which oxygen is used to make energy from carbohydrates (sugars).
aerobic respirationA chemical process in which oxygen is used to make energy from carbohydrates (sugars).
aerodigestive tractThe combined organs and tissues of the respiratory tract and the upper part of the digestive tract (including the lips, mouth, tongue, nose, throat, vocal…
AerodynamicsAs applied to racing, the study of airflow and the forces of resistance and pressure that result from the flow of air over, under and around a moving car
aeronautical advisory stationAn aeronautical station used for advisory and civil defense communications primarily with private aircraft stations. Synonym UNICOM station. [NTIA]
aeronautical broadcast stationAn aeronautical station which makes scheduled broadcasts of meteorological information and notices to airmen.
aeronautical Earth stationAn Earth station in the fixed-satellite service, or, in some cases, in the aeronautical mobile-satellite service, located at a specified fixed point on…
aeronautical fixed serviceA radiocommunication service between specified fixed points provided primarily for the safety of air navigation and for the regular, efficient and…
aeronautical mobile (OR) [off-route] serviceAn aeronautical mobile service intended for communications, including those relating to flight coordination, primarily outside national or international…
aeronautical mobile (R) [route] serviceAn aeronautical mobile service reserved for communications relating to safety and regularity of flight, primarily along national or international civil…
aeronautical mobile serviceA mobile service between aeronautical stations and aircraft stations, or between aircraft stations, in which survival craft stations may participate…
aeronautical mobile-satellite serviceA mobile-satellite service in which mobile Earth stations are located on board aircraft; survival craft stations and emergency position-indicating…
aeronautical multicom serviceA mobile service not open to public correspondence, used to provide communications essential to conduct activities being performed by or directed from…
aeronautical stationA land station in the aeronautical mobile service. In certain instances, an aeronautical station may be located, for example, on board ship or on a…
AerosolA system of colloidal particles dispersed in a gas, such as smoke or fog.
aerosol absorptionThe process in which radiation energy is retained by aerosols.
aerosol Angstrom coefficientOften incorrectly used synonymously with "aerosol Angstrom exponent", but should instead refer to the aerosol optical depth at the reference wavelength (1…
aerosol Angstrom exponentThe exponent of the inverse power-law that approximates the wavelength dependence of aerosol optical depth.
aerosol scatteringThe scattering of radiative energy by processes at the aerosol and molecular level.
aerosolizeIn medicine, to turn a liquid drug into a fine mist that can be inhaled.
Aerospace Defense (AD)(1) All defensive measures designed to destroy attacking enemy aircraft, missiles, and space vehicles after they leave the Earths surface, or to nullify…
AerostatsShip- or ground-moored balloon supporting a radar antenna.
Aerothermal KillA kill in which the thermal shielding of the target RV is damaged by the defensive system. The RV is subsequently destroyed during reentry.
aerovaneA device that resembles a wind vane with a propeller at one end. It is used to indicate wind speed and direction.
AFDArea Forecast Discussion - This National Weather Service product is intended to provide a well-reasoned discussion of the meteorological thinking which…
Affected EnvironmentFor an environmental impact statement, a description of the existing environment covering information necessary to assess or understand the impacts.
Affected relative pairIndividuals related by blood, each of whom is affected with the same trait. Examples are affected sibling, cousin, and avuncular pairs.
AffiantThe person who makes and subscribes to an affidavit.
AffidavitA sworn statement in writing before a proper official, such as a notary public.
Affidavit of Support (AOS)A document promising that the person who completes it will support an applicant financially in the United States.
Affidavit of Support (AoS; I-864)This form is absolutely essential to a complete application, and is filled out by the petitioner and, in some cases, joint sponsors.
affiliate(1) Entity with voting power that directly or indirectly owns 20% of debtors voting securities; (2) Corporation in which the debtor owns 20% of voting…
Affiliate MarketingAffiliate marketing programs allows merchants to expand their market reach and mindshare by paying independent agents on a cost per action (CPA) basis.
AffiliatedAssociated or controlled by the same owner or authority.
Affiliation (with a political party)A person becomes affiliated with a political party when the person is accepted to vote in the party’s primary election or applies for and is provided an…
Affinity cardA card that offers rewards that benefit groups and organizations.
affinity chromatographyA method for purifying specific components in a solution by exploiting their specific binding to known molecule(s).
Affinity fraudAffinity fraud occurs when a dishonest person plays on your affiliation with a group - such as a house of worship, social club, support group, charity, or…
affinity tagAn amino acid sequence that has been engineered into a protein to make its purification easier.
AffirmTo uphold a decision made in another court in a case on appeal, by a hearing officer in a court that has the authority to decide the appeal.
AffirmationA declaration, oath or promise made by a person.
Affirmative DefenseThe defendant denies or admits what the plaintiff says in the complaint and says that there is a justifiable reason.
affirmedIn the practice of appellate courts, the word means that the decision of the trial court is found to be correct on appeal.
affordableCloud computing services are purchased subscription style, with users paying only for what they use.
Affordable Care ActThe comprehensive health care reform law enacted in March 2010. The law was enacted in two parts: The Patient Protection and Affordable Care Act was…
Affordable Care Act (ACA)This is the title usually given to the federal health reform passed in March 2010 and collectively refers to the provisions of the Patient Protection and…
Affordable coverage (as it relates to APTC)Employer coverage is considered affordable - as it relates to the Advanced Premium Tax Credit (APTC) - if the employee’s share of the annual premium for…
AfforestationPlanting of new forests on lands that historically have not contained forests.
AfforestationsPlanting of new forests on lands that have not been recently forested.
AFFTCAir Force Flight Test Center, Edwards AFB, CA.
Afirmar, confirmar(a) Un acto jurídico de un tribunal de apelaciones confirmando que es correcta un fallo o una decisión de un tribunal inferior; (b) El acto de declarar…