Electromagnetic Interference (EMI)Any electromagnetic disturbance that interrupts, obstructs, or otherwise degrades or limits the effective performance of electronics/electrical equipment.
electromagnetic interference (EMI) controlThe control of radiated and conducted energy such that emissions that are unnecessary for system, subsystem, or equipment operation are reduced…
electromagnetic intrusionThe intentional insertion of electromagnetic energy into transmission paths in any manner, with the objective of deceiving operators or of causing…
Electromagnetic Pulse (EMP)The electromagnetic radiation from a nuclear explosion caused by Comptonrecoil electrons and photoelectrons from photons scattered in the materials of the…
Electromagnetic Radiation (EMR)(1) A form of propagated energy, arising from electric charges in motion that produces a simultaneous wavelike variation of electric and magnetic fields…
Electromagnetic SpectrumThe entire range of wavelengths of electromagnetic energy, including (from short to long wavelengths) gamma rays, X rays, ultraviolet light, visible…
electromagnetic survivabilityThe ability of a system, subsystem, or equipment to resume functioning without evidence of degradation following temporary exposure to an adverse…
electromagnetic susceptibilityOf an electronic circuit or device, the degree to which it is subject to malfunction or failure under the influence of electromagnetic radiation.
electromagnetic vulnerability (EMV)The characteristics of a system that cause it to suffer a definite degradation (incapability to perform the designated mission) as a result of having been…
electromagnetic wave (EMW)A wave produced by the interaction of time-varying electric and magnetic fields.
ElectromagneticsApplication of electrical, electronic, and magnetic phenomena to develop devices used in system/subsystem design, excluding employment in the RF spectrum.
Electronic Counter- Countermeasure s (ECCM)That division of electronic warfare involving actions taken to insure friendly effective use of the electromagnetic, optical, and acoustic spectra despite…
Electronic Counter- Countermeasures (ECCM)That division of electronic warfare involving actions taken to insure friendly effective use of the electromagnetic, optical, and acoustic spectra despite…
Electronic Countermeasure (ECM)That division of electronic warfare involving actions taken to prevent or reduce an enemys effective use of the electromagnetic spectrum.
electronic countermeasures (ECM)That division of electronic warfare involving actions taken to prevent or reduce an enemy's effective use of the electromagnetic spectrum.
Electronic CredentialsDigital documents used in authentication that bind an identity or an attribute to a subscriber's token.
electronic deceptionThe deliberate radiation, reradiation, alteration, suppression, absorption, denial, enhancement, or reflection of electromagnetic energy in a manner…
electronic distributionIn encryption, the distribution of keying materials among entities by means of an electronic communication.
electronic emission security1. Those measures taken to protect all transmissions from interception and electronic analysis. 2.
electronic equipment enclosure (EEE)An enclosure housing telecommunications electronics equipment. It may consist of a weatherproof enclosure, equipment pad or an equipment hut.
Electronic EvidenceAccording to Black's law dictionary, evidence is 'any species of proof, or probative matter, legally presented at the trial of an issue, by the act of…
electronic filingCapturing, indexing, and storing documents, both those that are born digital and those that have been digitized, in an electronic storage and retrieval…
Electronic funds transferElectronic funds transfer (EFT) is the means by which financial institutions exchange billions of dollars every day without the physical movement of any…
electronic mailtransmission of messages, their metadata, and possible attachments over communications networks
electronic message system (EMS)A message system incorporating electronic mail to a central facility which then assumes responsibility for delivering the message in hard copy form.
electronic messaging service[A] service providing interpersonal messaging capability; meeting specific functional, management, and technical requirements; and yielding a…
electronic payment gatewaySoftware and hardware interfacing merchants and credit-card authorization networks. [Mattila]
electronic publishing (e-publishing)The process of creating messages, distributing them, and reproducing them entirely online, often with a capability for feedback.
electronic reconnaissanceThe detection, identification, evaluation, and location of foreign electromagnetic radiations emanating from other than nuclear detonations or radioactive…
Electronic RecordInformation recorded in a form that requires a computer or other machine to process it and that otherwise satisfies the definition of a record.
electronic recordsRecords consisting of data and information which is input, created, manipulated and/or stored on electronic media which show evidence of actions and…
electronic records management systemA system consisting of software, hardware, policies, and processes to automate the preparation, organization, tracking, and distribution of records…
electronic records systemany electronic, electro-magnetic, optical digital, or magneto-optic system used to create, process, receive, keep, and retrieve records.
electronic security environmentThe ESE defines the system in security terms, identifying boundaries of security significance. These boundaries may be: a. internal, i.e.
electronic signatureA stamp added to mail messages, fields, or sections that verifies that the person who originated the message is the author and that no one has tampered…
electronic switching system (ESS)1. A telephone switching system based on the principles of time-division multiplexing of digitized analog signals.
electronic tillThe part of e-commerce (electronic commerce) software that processes real-time credit card payments. [After Mattila]
electronic vaultingDisaster planning service that involves moving data over a network to a secure remote site according to an established schedule
electronic walletA Web-browser plug-in that handles and stores a user's credit card and payment information. [Mattila]
Electronic Warfare (EW)Any military activity involving the use of electromagnetic and directed energy to control the electromagnetic spectrum or to attack the enemy.
Electronic Warfare (EW) EnvironmentsElectronic warfare environments result from radar and communications jamming and other related electromagnetic countermeasures and countercountermeasures .
electronic warfare support measures (ESM)That division of electronic warfare involving actions taken under direct control of an operational commander to search for, intercept, identify, and…
electronically controlled coupling (ECC)The coupling of a lightwave from one dielectric waveguide into another dielectric waveguide upon the application of an electric field or electrical signal.
electronically generated key[A] key generated in a COMSEC device by introducing (either mechanically or electronically) a seed key into the device and then using the seed, together…
Electronics Intelligence (ELINT)Technical and geo-location intelligence derived from foreign non-communications electromagnetic radiations emanating from other than nuclear detonations…
Electronics Security (ELSEC)The protection resulting from all measures designed to deny unauthorized persons information of value that might be derived from their interception and…
electrophotographic recordingRecording in which light is used to produce a change in electrostatic charge distribution to form a photographic image.
electrosensitive recordingRecording in which an electrical signal is directly impressed on the record medium.
electrostatic discharge (ESD)The rapid, spontaneous transfer of electrostatic charge induced by a high electrostatic field.
electrostatic discharge (ESD) protectiveHaving the capability of dissipating or limiting the generation of electrostatic charge, or of providing shielding from electrostatic discharges or…
electrostatic fieldThe electric field produced by an electrostatic charge. [T1.308-1996]
electrostatic recordingRecording by means of a signal-controlled electrostatic field. Note: Subsequent processing is usually required to make the image visible.
electrostatic shieldA barrier or enclosure that attenuates an electrostatic field. [T1.321-1995]
electrothermal recordingThat type of recording produced principally by signal-controlled thermal action.
element(EH-leh-ment) A basic part of a whole. In chemistry, refers to a simple substance that cannot be broken down into smaller parts or changed into another…
Element Capability Specification (ECS)A document that identifies the element-level BMDS capabilities and specifications necessary to achieve the system capabilities identified in the SCS.
Element Operations Center (EOC)An Air Force operations center, which operates and maintains a BMD weapon or sensor suite. (USSPACECOM)
elemental areaIn facsimile transmission systems, any segment of a scanning line, the dimension of which along the line is exactly equal to the nominal line width.
elevated ductAn atmospheric duct consisting of a high-density air layer that starts at high altitudes and continues upward or remains at high altitudes, thus affecting…
elevated privilegeA privilege to access system resources and objects outside of the standard access control checks.
ElevationA drawing of a face of a building with all the features shown, as if in a single vertical plane
elevation promptA dialog box that appears when a user is requested to confirm whether an administrative process should be permitted to start.
elliptic curve private key (d)In cryptology and within particular elliptic curve parameters, a statistically unique and unpredictable integer in the interval [1, n - 1], where n is the…
elliptic curve public keyIn cryptography, given particular elliptic curve parameters (and an elliptic curve private key d), the elliptic curve point Q = dP. [After X9.62]
elliptical polarizationIn electromagnetic wave propagation, polarization such that the tip of the electric field vector describes an ellipse in any fixed plane intersecting, and…
Email Address FinderService that allows you to search for other people's email addresses by entering their name, address, etc.
Emanations Security (EMSEC)The protection that results from all measures designed to deny unauthorized persons information of value that might be derived from intercept and analysis…
embedIn Web page design, to link or to insert an inline video image or sound file into the page so that it is hyperlinked and clickable. 2.
embedded base equipmentCustomer-premises equipment that had been provided by the Bell Operating Companies prior to January 1, 1984, that was ordered transferred from the BOCs to…