home/glossary/MWE Terms · O

Glossary · MWE Terms · O

L1 — paginated flat list. Pick a POS, pick a letter.

TermTypeDefinitionClassificationsUpdated
Opera CloaknounMWEa large cloak worn over evening clothesverifiedMay 18, 2026
Opera ComiquenounMWEopera with a happy ending and in which some of the text is spokenverifiedMay 18, 2026
Opera CompanynounMWEa company that produces operasverifiedMay 18, 2026
Opera GlassesnounMWEan optical instrument designed for simultaneous use by both eyesverifiedMay 18, 2026
Opera HatnounMWEa man's hat with a tall crownverifiedMay 18, 2026
Opera HoodnounMWEa large cloak worn over evening clothesverifiedMay 18, 2026
Opera HousenounMWEa building where musical dramas are performedverifiedMay 18, 2026
Opera StarnounMWEsinger of lead role in an operaverifiedMay 18, 2026
Operant ConditioningnounMWEconditioning in which an operant response is brought under stimulus control by virtue of presenting reinforcement contingent upon the occurrence of the operant responseverifiedMay 18, 2026
Operate & MaintainnounMWEA NICE Workforce Framework category consisting of specialty areas responsible for providing the support, administration, and maintenance necessary to ensure effective and efficient IT system performance and security.verifiedMay 9, 2026
operate onverbMWEperform surgery onverifiedJun 3, 2026
Operatic StarnounMWEsinger of lead role in an operaverifiedMay 18, 2026
Operating BudgetnounMWEa budget for current expenses as distinct from financial transactions or permanent improvementsverifiedMay 18, 2026
Operating CapabilitynounMWEthe capability of a technological system to perform as intendedverifiedMay 18, 2026
Operating CapitalnounMWEcapital available for the operations of a firm (e.g. manufacturing or transportation) as distinct from financial transactions and long-term improvementsverifiedMay 18, 2026
Operating CostnounMWEthe expense of maintaining property, including things such as paying property taxes, utilities and insuranceverifiedMay 18, 2026
Operating ExpensenounMWEthe expense of maintaining property (e.g., paying property taxes and utilities and insurance)verifiedMay 18, 2026
Operating InstructionsnounMWEa manual usually accompanying a technical device and explaining how to install or operate itverifiedMay 18, 2026
Operating MicroscopenounMWEbinocular microscope used in surgery to provide a clear view of small and inaccessible parts of the body (as in microsurgery)verifiedMay 18, 2026
Operating ProcedurenounMWEa procedure for operating something or for dealing with a given situationverifiedMay 18, 2026
Operating RoomnounMWEa room in a hospital equipped for the performance of surgical operationsverifiedMay 18, 2026
operating statenounMWEDistinct operating modes (which typically include specific Information Technology and Operations Technology configurations as well as alternate or modified procedures) that have been designed and implemented for the function and can be invoked by a manual or automated process in response to an event, a changing risk environment, or other sensory and awareness data to provide greater safety, resiliency, reliability, and/or cybersecurity. For example, a shift from the normal state of operation to a high-security operating mode may be invoked in response to a declared cybersecurity incident of sufficient severity. The high-security operating state may trade off efficiency and ease of use in favor of increased security by blocking remote access and requiring a higher level of authentication and authorization for certain commands until a return to the normal state of operation is deemed safe.verifiedMay 9, 2026
Operating StatementnounMWEa financial statement that gives operating results for a specific periodverifiedMay 18, 2026
Operating SurgeonnounMWEa physician who specializes in surgeryverifiedMay 18, 2026
Operating systemnounMWEThe software 'master control application' that runs the computer. It is the first program loaded when the computer is turned on, and its principal component, the kernel, resides in memory at all times. The OS sets the standards for all application programs (such as the mail server) that run in the computer. The applications communicate with the OS for most user interface and file management operations.verifiedMay 9, 2026
Operating System FingerprintingnounMWEAnalyzing characteristics of packets sent by a target, such as packet headers or listening ports, to identify the operating system in use on the target.verifiedMay 9, 2026
Operating TablenounMWEtable on which the patient lies during a surgical operationverifiedMay 18, 2026
Operating TheaternounMWEa room in a hospital equipped for the performance of surgical operationsverifiedMay 18, 2026
Operating TheatrenounMWEa room in a hospital equipped for the performance of surgical operationsverifiedMay 18, 2026
Operation CodenounMWEthe portion of a set of operation descriptions that specifies the operation to be performedverifiedMay 18, 2026
Operational CasualtynounMWEloss of military equipment in field operationsverifiedMay 18, 2026
Operational CellnounMWEa terrorist cell that performs clandestine activitiesverifiedMay 18, 2026
operational controlnounMWEThe day-to-day security procedures and mechanisms to protect operational systems. The operational controls consist of the physical, environmental and personnel security controls. These controls deal with the everyday operation of a company or organization to ensure all objectives are achieved.verifiedMay 9, 2026
Operational DamagenounMWEloss of military equipment in field operationsverifiedMay 18, 2026
operational exercisnounMWEAn action-based exercise where personnel rehearse reactions to an incident scenario, drawing on their understanding of plans and procedures, roles, and responsibilities.verifiedMay 9, 2026
operational exercisenounMWEAn action-based exercise where personnel rehearse reactions to an incident scenario, drawing on their understanding of plans and procedures, roles, and responsibilities.verifiedAug 30, 2026
Operational IT plannounMWETypically, the plans that are made by front-line, or low-level, IT managers. Operational IT plans are focused on the specific procedures and processes that implement the larger strategic plan.verifiedMay 9, 2026
Operational KeynounMWEKey intended for use over-the-air for protection of operational information or for the production or secure electrical transmission of key streams.verifiedMay 9, 2026
operational performance reportnounMWEA report that details the findings of a performance review of a business's operations.verifiedAug 30, 2026
operational resiliencenounMWEThe ability of an FMI to: (i) maintain essential operational capabilities under adverse conditions or stress, even if in a degraded or debilitated state; and (ii) recover to effective operational capability in a time frame consistent with the provision of critical economic services.verifiedMay 9, 2026
Operational risknounMWEThe risk of failure or loss resulting from inadequate or failed processes, people, or systems.verifiedAug 30, 2026
Operational TechnologynounMWEThe hardware, software, and firmware components of a system used to detect or cause changes in physical processes through the direct control and monitoring of physical devices.verifiedAug 30, 2026
Operational Vulnerability InformationnounMWEInformation that describes the presence of an information vulnerability within a specific operational setting or network.verifiedAug 30, 2026
Operational WaivernounMWEAuthority for continued use of unmodified COMSEC end-items pending the completion of a mandatory modification.verifiedMay 9, 2026
Operations CodenounMWECode composed largely of words and phrases suitable for general communications use.verifiedMay 9, 2026
Operations ResearchnounMWEresearch designed to determine most efficient way to do somethingverifiedMay 18, 2026
Operations SecuritynounMWESystematic and proven process by which potential adversaries can be denied information about capabilities and intentions by identifying, controlling, and protecting generally unclassified evidence of the planning and execution of sensitive activities. The process involves five steps: identification of critical information, analysis of threats, analysis of vulnerabilities, assessment of risks, and application of appropriate countermeasures.verifiedMay 9, 2026
Operations TechnologynounMWEThe hardware and software systems used to operate industrial control devices.verifiedMay 9, 2026
Operative FieldnounMWEthe area that is open during surgeryverifiedMay 18, 2026
Operator GenenounMWEa gene that activates the production of messenger RNA by adjacent structural genesverifiedMay 18, 2026
Ophthalmia NeonatorumnounMWEophthalmia in newbornsverifiedMay 18, 2026
Ophthalmic ArterynounMWEa branch of the internal carotid artery that supplies the eye and neighboring structuresverifiedMay 18, 2026
Ophthalmic VeinnounMWEeither of two veins that serve the eyeverifiedMay 18, 2026
Opinion PollnounMWEan inquiry into public opinion conducted by interviewing a random sample of peopleverifiedMay 18, 2026
Opium AddictnounMWEsomeone addicted to opiumverifiedMay 18, 2026
Opium DennounMWEa building where opium is sold and usedverifiedMay 18, 2026
Opium PoppynounMWEsouthwestern Asian herb with greyish leaves and white or reddish flowersverifiedMay 18, 2026
Opium TakernounMWEsomeone addicted to opiumverifiedMay 18, 2026
Opossum RatnounMWEterrestrial marsupials of southern South America that resemble shrewsverifiedMay 18, 2026
Opossum ShrimpnounMWEshrimp-like crustaceans whose females carry eggs and young in a pouch between the legsverifiedMay 18, 2026
Opossum WoodnounMWEmedium-sized tree of West Virginia to Florida and TexasverifiedMay 18, 2026
Opportunistic InfectionnounMWEany infection caused by a microorganism that does not normally cause disease in humansverifiedMay 18, 2026
Opportunity CostnounMWEcost in terms of foregoing alternativesverifiedMay 18, 2026
Opposite NumbernounMWEa person or thing having the same function or characteristics as anotherverifiedMay 18, 2026
Opposite WordnounMWEa word that expresses a meaning opposed to the meaning of another word, in which case the two words are antonyms of each otherverifiedMay 18, 2026
opt outverbMWEchoose not to do something, as out of fear of failingverifiedJun 3, 2026
Optative MoodnounMWEa mood (as in Greek or Sanskrit) that expresses a wish or hopeverifiedMay 18, 2026
Optic AxisnounMWEa line that passes through the center of curvature of a lens so that light is neither reflected nor refractedverifiedMay 18, 2026
Optic ChiasmnounMWEthe crossing of the optic nerves from the two eyes at the base of the brainverifiedMay 18, 2026
Optic ChiasmanounMWEthe crossing of the optic nerves from the two eyes at the base of the brainverifiedMay 18, 2026
Optic CupnounMWE(embryology) a two-walled cuplike depression that develops into the pigmented and sensory layers of the retinaverifiedMay 18, 2026
Optic DiscnounMWEthe point where the optic nerve enters the retinaverifiedMay 18, 2026
Optic DisknounMWEthe point where the optic nerve enters the retinaverifiedMay 18, 2026
Optic NervenounMWEthe cranial nerve that serves the retinaverifiedMay 18, 2026
Optic RadiationnounMWEa nerve pathway from the lateral geniculate body to the visual cortexverifiedMay 18, 2026
Optic TractnounMWEthe cranial nerve that serves the retinaverifiedMay 18, 2026
Optical AberrationnounMWEan optical phenomenon resulting from the failure of a lens or mirror to produce a good imageverifiedMay 18, 2026
Optical BenchnounMWEapparatus for observation and measurement of optical phenomenaverifiedMay 18, 2026
Optical CondensernounMWElens used to concentrate light on an objectverifiedMay 18, 2026
Optical CrownnounMWEoptical glass of low dispersion and low refractive indexverifiedMay 18, 2026
Optical Crown GlassnounMWEoptical glass of low dispersion and low refractive indexverifiedMay 18, 2026
Optical DensitynounMWE(physics) a measure of the extent to which a substance transmits light or other electromagnetic radiationverifiedMay 18, 2026
Optical DevicenounMWEa device for producing or controlling lightverifiedMay 18, 2026
Optical DiscnounMWEa disk coated with plastic that can store digital data as tiny pits etched in the surfaceverifiedMay 18, 2026
Optical DisknounMWEa disk coated with plastic that can store digital data as tiny pits etched in the surfaceverifiedMay 18, 2026
Optical FibernounMWEa very thin fiber made of glass that functions as a waveguide for lightverifiedMay 18, 2026
Optical FibrenounMWEa very thin fiber made of glass that functions as a waveguide for lightverifiedMay 18, 2026
Optical FlintnounMWEoptical glass of high dispersion and high refractive indexverifiedMay 18, 2026
Optical FusionnounMWEthe combining of images from the two eyes to form a single visual perceptverifiedMay 18, 2026
Optical GlassnounMWEclear homogeneous glass of known refractive indexverifiedMay 18, 2026
Optical IllusionnounMWEan optical phenomenon that results in a false or deceptive visual impressionverifiedMay 18, 2026
Optical InstrumentnounMWEan instrument designed to aid visionverifiedMay 18, 2026
Optical LensnounMWEa lens that focuses the image in a cameraverifiedMay 18, 2026
Optical MasernounMWEan acronym for light amplification by stimulated emission of radiationverifiedMay 18, 2026
Optical OpacitynounMWEopacity to lightverifiedMay 18, 2026
Optical PhenomenonnounMWEa physical phenomenon related to or involving lightverifiedMay 18, 2026
Optical PrismnounMWEoptical device having a triangular shape and made of glass or quartzverifiedMay 18, 2026
Optical PyrometernounMWEa pyrometer that uses the color of the light emitted by a hot objectverifiedMay 18, 2026
Optical TelescopenounMWEan astronomical telescope designed to collect and record light from cosmic sourcesverifiedMay 18, 2026
Opting innounMWEPI may not be collected, used, retained and disclosed by the entity without the explicit consent of the individual.verifiedAug 30, 2026