Definitions beginning with M

Model year - permalink - collapse

All > Science > Climate Change

Refers to the "sales" model year; for example, vehicles sold during the period from October 1 to the next September 31 is considered one model year.
EPA - Cite This Source - This Definition
Browse Related Terms: Climate Model, Climate modeling, General Circulation Model, General Circulation Model (GCM)

Modem - permalink - collapse

All > Law > E-Discovery

A piece of hardware that lets one computer talk to another computer over a phone line.
Renew Data - Cite This Source - This Definition
A device that allows a computer system to transmit data over telephone or cable lines.
AmDoc - Cite This Source - This Definition
Browse Related Terms: Baud Rate, Broadband, CDPD (Cellular Digital Packet Data), CRC (Cyclical Redundancy Checking), Full Duplex, International Telecommunication Union (ITU), Upload, V.32bis, V.34, X.25

All > Technology > Defense

Modulator-Demodulator (Telecomm/Computer term).
DoD Missile Defense Agency - Cite This Source - This Definition
Browse Related Terms: CGA, DDS, DSU, EISA, FDX, NVMEN, RTS, tp, VGA, VMF, WAN, X-ON/X-OFF

All > Technology > Programming > Java

A modulator-demodulator. A hardware device used to connect a digital computer to an analogue telephone network by turning analogue signals into digital signals, and vice versa.
David J. Barnes - Cite This Source - This Definition
Browse Related Terms: GCF (Generic Connection Framework), Internet Service Provider, LAN (Local Area Network), OTA (Over The Air), PSTN (public service telephone network), Telematics

All > Technology > Telecommunications

Acronym for modulator/demodulator. 1. In general, a device that both modulates and demodulates signals. 2. In computer communications, a device used for converting digital signals into, and recovering them from, quasi-analog signals suitable for transmission over analog communications channels. Note: Many additional functions may be added to a modem to provide for customer service and control features. Synonym signal conversion equipment. 3. In FDM carrier systems, a device that converts the voice band to, and recovers it from, the first level of frequency translation.
ATIS - Cite This Source - This Definition
Browse Related Terms: analog transmission, baseband signaling, full modulation, group distribution frame (GDF), high-frequency distribution frame (HFDF), modulator-demodulator (modem), quasi-analog transmission, Saturation, vocoder

mode mixer - permalink - collapse

All > Technology > Telecommunications

Synonym mode scrambler.
ATIS - Cite This Source - This Definition
Browse Related Terms: add mode, alternating mode, common-mode rejection ratio (CMRR), connection-mode transmission, connectionless transmission, conversational mode, cutoff mode, evanescent mode, guided mode, Landscape Mode, locked mode, LP mode, LP01 mode, mode filter, mode stripper, Portrait Mode, recovery mode, tracking mode, tracking phase, trapped mode, tunneling mode, unbound mode

modem patch - permalink - collapse

All > Technology > Telecommunications

A method of electrically interconnecting circuits by using back-to-back modems.
ATIS - Cite This Source - This Definition
Browse Related Terms: break-out box, circuit restoration, node, SECORD

Mode of Operation - permalink - collapse

All > Technology > Security

An algorithm for the cryptographic transformation of data that features a symmetric key block cipher algorithm.
NIST - Cite This Source - This Definition
Browse Related Terms: Advanced Encryption Standard (AES), Approved Mode of Operation, Authentication Mode, Block Cipher, Block Cipher Algorithm, CBC/MAC, CCM, Cipher Block Chaining-Message Authentication Code (CBC-MAC), Counter with Cipher Block Chaining-Message Authentication Code (CCM), Forward Cipher

All > Technology > Telecommunications

[A] description of the conditions under which an information system (IS) operates based on the sensitivity of information processed and the clearance levels, formal access approvals, and need-to-know of its users. Four modes of operation are authorized for processing or transmitting information: dedicated mode, system-high mode, compartmented/ partitioned mode, and multilevel mode. [INFOSEC-99]
ATIS - Cite This Source - This Definition
Browse Related Terms: compartmented mode, dedicated mode, multilevel mode, system high mode

mode partition noise - permalink - collapse

All > Technology > Telecommunications

In an optical communications link, phase jitter of the signal caused by the combined effects of mode hopping in the optical source and intramodal distortion in the fiber. Note: Mode hopping causes random wavelength changes which in turn affect the group velocity, i.e., the propagation time. Over a long length of fiber, the cumulative effect is to create jitter, i.e., mode partition noise. The variation of group velocity creates the mode partition noise.
ATIS - Cite This Source - This Definition
Browse Related Terms: attenuation constant, group delay, group velocity, modal noise, multimode optical fiber, phase constant, speckle pattern

moderated conference - permalink - collapse

All > Technology > Telecommunications

An electronic conference in which participants exchange computer messages via a moderator who may accept, modify, or reject them. [2382-pt.35]
ATIS - Cite This Source - This Definition
Browse Related Terms: computer conference, forum, moderator, Thread, USENET

An information system in which at least one security objective (i.e., confidentiality, integrity, or availability) is assigned a FIPS 199 potential impact value of moderate and no security objective is assigned a FIPS 199 potential impact value of high.
NIST - Cite This Source - This Definition
Browse Related Terms: High Impact System, Low Impact System, Potential Impact, Security Category

Moderate Risk (of severe thunderstorms) - permalink - collapse

All > Science > Weather

Severe thunderstorms are expected to affect between 5 and 10 percent of the area. A moderate risk indicates the possibility of a significant severe weather episode. See high risk, slight risk, convective outlook.
NOAA National Weather Service - Cite This Source - This Definition
Browse Related Terms: AFCT, High Risk (of severe thunderstorms), PSBLY, Slight Risk, SWODY2

moderator - permalink - collapse

All > Technology > Telecommunications

In computer conferencing, a person who receives the prospective messages from conference attendees and may accept, modify, or reject them. [2382-pt.35] Synonym conference controller.
ATIS - Cite This Source - This Definition
Browse Related Terms: computer conference, forum, moderated conference, Thread, USENET

modern biotechnology - permalink - collapse

All > Science > Biotechnology and Genetics > Food Biotechnology

The application of:
- a. In vitro nucleic acid techniques, including recombinant deoxyribonucleic acid (DNA ) and direct injection of nucleic acid into cells or organelles, or
- b. Fusion of cells beyond the taxonomic family,
that overcome natural physiological reproductive or recombination barriers and that are not techniques used in traditional breeding and selection (Convention on Biological Diversity).
UN Food and Agriculture Organization - Cite This Source - This Definition
Browse Related Terms: Biodiversity, biological diversity, centre of origin, Convention on Biological Diversity, ecological diversity, ex-situ conservation, gene (resources) conservation, semi-permeable membrane

Modern portfolio theory - permalink - collapse

All > Business > Finance > Personal Finance

In making investment decisions, adherents of modern portfolio theory focuses on potential return in relation to potential risk.
The strategy is to evaluate and select individual securities as part of an overall portfolio rather than solely for their own strengths or weaknesses as an investment.
Asset allocation is a primary tactic according to theory practitioners. That's because it allows investors to create portfolios to get the strongest possible return without assuming a greater level of risk than they are comfortable with.
Another tenet of portfolio theory is that investors must be rewarded, in terms of realizing a greater return, for assuming greater risk. Otherwise, there would be little motivation to make investments that might result in a loss of principal.

Yahoo Finance - Cite This Source - This Definition
Browse Related Terms: Boiler room, diversification, Fund of funds (FOF), Hedge fund, Investment Club, Nonsystematic risk, portfolio, Synthetic investment

Modes - permalink - collapse

All > Technology > Defense

Situational conditions or categories under which selective Rules of Engagement apply. Examples include: Peacetime: Day to day operation when training, exercises, and routine maintenance and operations occur. Prior to crisis or war. Crisis: The transition state between peacetime and war. War: Self-explanatory.
DoD Missile Defense Agency - Cite This Source - This Definition
Browse Related Terms: Area of Operations, OOTW, Operational Mode, opine, POE, TEMO

mode scrambler - permalink - collapse

All > Technology > Telecommunications

A device for inducing mode coupling in an optical fiber. 2. A device composed of one or more optical fibers in which strong mode coupling occurs. Note: Mode scramblers are used to provide a modal distribution that is independent of the optical source, for purposes of laboratory or field measurements or tests. Synonym mode mixer.
ATIS - Cite This Source - This Definition
Browse Related Terms: launch numerical aperture (LNA), launching fiber, mandrel wrapping

mode stripper - permalink - collapse

All > Technology > Telecommunications

See cladding mode stripper.
ATIS - Cite This Source - This Definition
Browse Related Terms: add mode, alternating mode, common-mode rejection ratio (CMRR), connection-mode transmission, connectionless transmission, conversational mode, cutoff mode, evanescent mode, guided mode, Landscape Mode, locked mode, LP mode, LP01 mode, mode filter, mode mixer, Portrait Mode, recovery mode, tracking mode, tracking phase, trapped mode, tunneling mode, unbound mode

mode volume - permalink - collapse

All > Technology > Telecommunications

The number of bound modes that an optical fiber is capable of supporting. Note: The mode volume M is approximately given by V²/2 and (V²/2)[g/(g+2)] respectively for step-index and power-law profile fibers, where g is the profile parameter, and V is the normalized frequency greater than 5.
ATIS - Cite This Source - This Definition
Browse Related Terms: bound mode, cladding mode, cladding mode stripper, differential mode attenuation, differential mode delay, effective mode volume, fundamental mode, HE11 mode, linearly polarized (LP) mode, multimode group delay, single-mode fiber, single-mode optical fiber, single-mode optical waveguide, unimode fiber

modification - permalink - collapse

All > Business > Real Estate

When a lender agrees to modify the terms of a mortgage without refinancing the loan.
US Department of Housing and Urban Development - Cite This Source - This Definition
A change in the terms of the mortgage note, such as a reduction in the interest rate or a change in maturity date.
Ginnie Mae - Cite This Source - This Definition
Any change to the terms of a mortgage loan, including changes to the interest rate, loan balance, or loan term.
Federal Trade Commission - Cite This Source - This Definition
Browse Related Terms: Assumable loan, Change Orders, Mitigation, Predictive Variables, Variable payment plan

All > Science > Biotechnology and Genetics > Food Biotechnology

Enzymatic attachment of one or more chemical groups to a macromolecule, affecting its biological activity or properties. See: methylation, glycosylation, phosphorylation.
UN Food and Agriculture Organization - Cite This Source - This Definition
Browse Related Terms: flavin adenine dinucleotide, Hydrogen bond, oxidative phosphorylation

Modification Decision Analysis (MDA) - permalink - collapse

All > Science > Water

The process of determining with confidence whether dam safety deficiencies exist for maximum loading conditions. The MDA process is a technical, state-of-the-art evaluation whose complexity can range from the simplified SEED Analysis Report evaluations using available data, to advanced engineering and geologic analyses conducted using material properties and other data obtained from detailed field and laboratory investigations. The MDA evaluates suspected safety of dam deficiencies, identifies the critical types of loading conditions that may cause dam failure, (e.g., earthquake, flood, and static reservoir loading), and eliminates or verifies suspected deficiencies which are capable of causing failure of the dam.

Bureau of Reclamation - Cite This Source - This Definition
Browse Related Terms: arid, BSC, Dam safety deficiency, Deficiency Verification Analysis (DVA), DVA, essential element, FS, Overall safety of dams classification, Potential dam safety deficiency, Safety evaluation flood (SEF)

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Model year - permalink - collapse

Modem - permalink - collapse

mode mixer - permalink - collapse

modem patch - permalink - collapse

Mode of Operation - permalink - collapse

mode partition noise - permalink - collapse

moderated conference - permalink - collapse

Moderate Flooding - permalink - collapse

Moderate frequency flood - permalink - collapse

Moderate Impact System - permalink - collapse

Moderate Risk (of severe thunderstorms) - permalink - collapse

moderator - permalink - collapse

modern biotechnology - permalink - collapse

Modern portfolio theory - permalink - collapse

Modes - permalink - collapse

mode scrambler - permalink - collapse

mode stripper - permalink - collapse

mode volume - permalink - collapse

modification - permalink - collapse

Modification Decision Analysis (MDA) - permalink - collapse