EFBEnvironmental Fault Bus. A storage shelf component that is used to note disk and shelf events, including disk insertion or removal, fan faults, and power…
Effective 2-WireThe term "Effective 2-Wire" denotes a condition which permits the simultaneous transmission in both directions over a channel, but it is not possible to…
Effective 4-WireThe term "Effective 4-Wire" denotes a condition which permits the simultaneous independent transmission of information in both directions over a channel.
Effective CapacityThe maximum load that a device is capable of carrying.
Effective DamageThat damage necessary to render a target element inoperative, unserviceable, nonproductive, or uninhabitable.
effective data transfer rateThe average number of units of data, such as bits, characters, blocks, or frames, transferred per unit time from a source and accepted as valid by a sink.
Effective DateThe date on which an insurance policy becomes effective.
Effective diameterParticle diameter corresponding to 10 percent finer on the accumulative gradation curve.
effective Earth radiusThe radius of a hypothetical Earth for which the distance to the radio horizon, assuming rectilinear propagation, is the same as that for the actual Earth…
effective emissivityA correction factor, dependent on the radiational characteristics of the earth-atmosphere system, that permits application of black body radiation laws to…
Effective forceThe force transmitted through a soil or rock mass by intergranular pressures.
effective heightThe height of the center of radiation of an antenna above the effective ground level. 2.
effective input noise temperatureThe source noise temperature in a two-port network or amplifier that will result in the same output noise power, when connected to a noise-free network or…
effective mode volumeFor an optical fiber, the square of the product of the diameter of the near-field pattern and the sine of the radiation angle of the far-field pattern.
Effective peak ground accelerationThat acceleration which is most closely related to structural response and to damage potential of an earthquake.
Effective PorosityThe ratio of the volume of a soil or rock mass that can be drained by gravity to the total volume of the mass.
effective powerIn alternating-current power transmission and distribution, the product of the rms voltage and amperage, i.e.
Effective Precipitation1) That part of the precipitation that produces runoff. 2) A weighted average of current and antecedent precipitation that is "effective" in correlating…
Effective Precipitation (Rainfall)(1) That part of the precipitation that produces runoff. (2) A weighted average of current and antecedent precipitation that is "effective" in correlating…
Effective tax rateYour effective tax rate is the rate you actually pay on all of your taxable income.
Effective Terrestrial RadiationThe difference between upwelling infrared or terrestrial radiation emitted from the earth and the downwelling infrared radiation from the atmosphere
Effective TopographyThe topography as seen by an approaching flow, which may include not only the actual terrain but also cold air masses trapped within or adjacent to the…
effective transmission rateThe rate at which information is processed by a transmission facility. Note 1: The effective transmission rate is calculated as (a) the measured number of…
effective userThe user under whose authority an agent runs. The effective user name will be used for ACL access rights; rights to create databases, replicas, and…
EffectivenessA property of a Target of Evaluation representing how well it provides security in the context of its actual or proposed operational use [ITSEC].
EffectivityA designation given to the BMDS configuration and demonstrated capability at a point in time, becoming effective at each increment when an element or…
effector cellA cell that performs a specific function in response to a stimulus; usually used to describe cells in the immune system.
effector cellsCells of the immune system that are responsible for the production of cell-mediated cytotoxicity.
effector moleculeA molecule that influences the behaviour of a regulatory molecule, such as a repressor protein, thereby influencing gene expression.
EffectsEnvironmental consequences (the scientific and analytical basis for comparison of alternatives) as a result of a proposed action.
EfficacyEffectiveness. In medicine, the ability of an intervention (for example, a drug or surgery) to produce the desired beneficial effect.
EfficiencyUnder the First Law of Thermodynamics, efficiency is the ratio of work or energy output to work or energy input, and cannot exceed 100 percent.
efficiency factorIn data communications, the ratio of (a) the time to transmit a text automatically at a specified modulation rate to (b) the time actually required to…
Efficient marketWhen the information that investors need to make investment decisions is widely available, thoroughly analyzed, and regularly used, the result is an…
Efficient market theoryProponents of the efficient market theory believe that a stock's current price accurately reflects what investors know about the stock.
EffigyAn object bearing the likeness of an animal or human.
EffluentThe treated waste water discharged by sewage treatment plants.
Effluent limitationThe maximum amount of a specific substance or characteristic that can be present in effluent discharge without violating water quality standards in…
Effluent PlumeThe pathway of movement of effluents through surface water or air.
Effluent SeepageDiffuse discharge of ground water to the ground surface.
Effluent StreamAny watercourse in which all, or a portion of the water volume came from the Phreatic zone, or zone of saturation by way of groundwater flow, or baseflow.
effusion(eh-FYOO-zhun) An abnormal collection of fluid in hollow spaces or between tissues of the body.
EFIA type of interface between a computer, firmware, hardware, and the operating system. EFI defines a new partition style called GUID partition table (GPT).
eflornithineA substance that is being studied in the prevention of cancer. It belongs to the family of drugs called antiprotozoals.
EFTsA group of cancers that includes Ewing tumor of bone (ETB or Ewing sarcoma of bone), extraosseous Ewing (EOE) tumors, primitive neuroectodermal tumors…
EGA (Enterprise Grid Alliance)The Enterprise Grid Alliance is a consortium of leading vendors and customers focused on developing Enterprise Grid solutions.
EGb761A substance that is being studied in the prevention of cognitive dysfunction (slowed ability to think, reason, concentrate, or remember) in patients…
EGFRThe protein found on the surface of some cells and to which epidermal growth factor binds, causing the cells to divide.
EGFR inhibitorsStands for epidermal growth factor receptor inhibitors. Epidermal growth factor is a protein in the body that stimulates some cells, including some cancer…
egg1. The fertilized zygote in egg-laying animals. 2. The mature female reproductive cell in animals and plants.
Egg and dartAn ornamental band molding of egg forms alternating with dart forms.
Egg cylinderAn asymmetric embryonic structure that helps to determine the body plan of the mouse.
egg sinkerAn egg-shaped fishing weight with a hole through the center for the line to pass through.
Egress FilteringThe process of blocking outgoing packets that use obviously false Internet Protocol (IP) addresses, such as source addresses from internal networks.
EIA interfaceAny of a number of equipment interfaces compliant with voluntary industry standards developed by the Electronic Industries Association (EIA) to define…
Eight Ingredient FrameworkA systematic and comprehensive framework that a) consists of the ingredients that make up communications infrastructure, b) includes all of these…
eight-hundred (800) serviceA service that allows call originators to place toll telephone calls to 800-service subscribers, from within specified rate areas, without a charge to the…
EJB contextAn object that allows an enterprise bean to invoke services provided by the container and to obtain the information about the caller of a client-invoked…
EJB home objectAn object that provides the life-cycle operations (create, remove, find) for an enterprise bean.
EJB JAR fileA JAR archive that contains an EJB module.
EJB moduleA deployable unit that consists of one or more enterprise beans and an EJB deployment descriptor.