Definitions beginning with M

main lobe - permalink - collapse

All > Technology > Telecommunications

Of an antenna radiation pattern, the lobe containing the maximum power (exhibiting the greatest field strength). Note: The horizontal radiation pattern, i.e., that which is plotted as a function of azimuth about the antenna, is usually specified. The width of the main lobe is usually specified as the angle encompassed between the points where the power has fallen 3 dB below the maximum value. The vertical radiation pattern, i.e., that which is plotted as a function of elevation from a specified azimuth, is also of interest and may be similarly specified. Synonym main beam.

ATIS - Cite This Source - This Definition
Browse Related Terms: antenna lobe, beam, beam steering, beamwidth, departure angle, lobe, major lobe, null, side lobe

main method - permalink - collapse

All > Technology > Programming > Java

The starting point for program execution
```
 public static void main(String[] args) 
```
David J. Barnes - Cite This Source - This Definition
Browse Related Terms: array, autoboxing, base type, casting, dynamic type, heterogeneous collection, homogeneous collection, return type

main station - permalink - collapse

All > Technology > Telecommunications

A user instrument, e.g., telephone set or terminal, with a distinct call number designation, connected to a local loop, used for originating calls, and on which incoming calls from the exchange are answered.
ATIS - Cite This Source - This Definition
Browse Related Terms: calling rate, delay working, eight-hundred (800) service, five-hundred (500) service, outgoing access, radiotelephone call, radiotelex call, seven-hundred (700) service, telephone number, videophone

Main Stem - permalink - collapse

All > Science > Weather

In hydrologic terms, the reach of a river/stream formed by the tributaries that flow into it.
NOAA National Weather Service - Cite This Source - This Definition
Browse Related Terms: Anabranch, Dendritic, Dredging, Flow, Headwaters, Lotic System, River System, Surface water, Watercourse

main storage - permalink - collapse

All > Technology > Telecommunications

In a computer, program-addressable storage from which instructions and other data may be loaded directly into registers for subsequent execution or processing. Note 1: Main storage includes the total program-addressable execution space that may include one or more storage devices. Note 2: "Main storage" usually refers to large and intermediate computers, whereas "memory" usually refers to microcomputers, minicomputers, and calculators.
ATIS - Cite This Source - This Definition
Browse Related Terms: address part, array processor, bootstrap, branch, CPU, executive state, microinstruction, multiprocessing, processor, programmer, remote job entry (RJE), stored-program computer, subroutine

Mainstream (mainstem) - permalink - collapse

All > Science > Water

The main course of a stream where the current is the strongest.

Bureau of Reclamation - Cite This Source - This Definition
Browse Related Terms: Coulees, Eddy, Main channel, Main channel pool, Pool

mainstream medicine - permalink - collapse

All > Medicine > Cancer

(MAYN-streem MEH-dih-sin) A system in which medical doctors and other healthcare professionals (such as nurses, pharmacists, and therapists) treat symptoms and diseases using drugs, radiation, or surgery. Also called allopathic medicine, biomedicine, conventional medicine, orthodox medicine, and Western medicine.
National Cancer Institute - Cite This Source - This Definition
Browse Related Terms: allopathic medicine, anticarcinogenic, biomedicine, conventional medicine, medication, orthodox medicine, Western medicine

Main Synoptic Times - permalink - collapse

All > Science > Weather

The times of 0000, 0600, 1200, and 1800 UTC. Also known as the standard synoptic times.
NOAA National Weather Service - Cite This Source - This Definition
Browse Related Terms: CST, EST, LST, PST, Standard Synoptic Times

MAINT - permalink - collapse

All > Science > Weather

Maintain
NOAA National Weather Service - Cite This Source - This Definition
Browse Related Terms: Contents, Drought Index, Orifice, Pool, Pool Height, spring, Valve, Winter Pool

maintainability - permalink - collapse

All > Technology > Telecommunications

A characteristic of design and installation, expressed as the probability that an item will be retained in or restored to a specified condition within a given period of time, when the maintenance is performed in accordance with prescribed procedures and resources. 2. The ease with which maintenance of a functional unit can be performed in accordance with prescribed requirements.
ATIS - Cite This Source - This Definition
Browse Related Terms: adaptive system, Artificial Intelligence (AI), design margin, design objective (DO), extensibility, general purpose computer, machine learning, open systems architecture, Performance, performance anomalies

Maintainer - permalink - collapse

All > Technology > Defense

An individual responsible for retaining the major defense system in or restoring it to a specified condition. Maintenance activities include inspection, testing, servicing, classification as to serviceability, repair, rebuilding, and reclamation.
DoD Missile Defense Agency - Cite This Source - This Definition
Browse Related Terms: CAT, CATS, Hardware-in-the- Loop (HWIL), HWILT, Preproduction Test, Product Improvement

maintenance - permalink - collapse

All > Law > Intellectual Property > Patent

The patent fees due at 4, 8 and 12 years needed to keep a U. S. utility or plant patent in force for its full life.
University of North Texas - Cite This Source - This Definition
Browse Related Terms: Annuity, Fee, Filing, Fee, Issue, Fee, Maintenance, Fee, Petition, Filing Fee, Forfeited Application, Issue Fee, Lapse Date, Maintenance Fee, maintenance fees, Renewal Fee

All > Science > Water

All routine and extraordinary work necessary to keep the facilities in good repair and reliable working order to fulfill the intended designed project purposes. Maintaining structures and equipment in intended operating condition, equipment repair, and minor structure repair.

Bureau of Reclamation - Cite This Source - This Definition
Browse Related Terms: ALP, BCPA, Multipurpose project, overhang, Project, Spills

All > Technology > Telecommunications

Any activity, such as tests, measurements, replacements, adjustments and repairs, intended to restore or retain a functional unit in a specified state in which the unit can perform its required functions. 2. [For materiel], All action taken to retain materiel in a serviceable condition or to restore it to serviceability. It includes inspection, testing, servicing, classification as to serviceability, repair, rebuilding, and reclamation. [JP1] 3. [For materiel], All supply and repair action taken to keep a force in condition to carry out its mission. [JP1] 4. [For materiel], The routine recurring work required to keep a facility (plant, building, structure, ground facility, utility system, or other real property) in such condition that it may be continuously used, at its original or designed capacity and efficiency for its intended purpose. [JP1]
ATIS - Cite This Source - This Definition
Browse Related Terms: accounting management, Coordinated Conversion, entrance facility, intrusive measurements, power entrance facility (PEF), preventive maintenance (PM)

Maintenance Concept/Plan - permalink - collapse

All > Technology > Defense

A description of maintenance considerations and constraints for system/equipment under development. A preliminary maintenance concept is developed and submitted as part of the preliminary system operational concept for each alternative solution candidate by the operating command with the assistance of the implementing and supporting commands. A major driver in design of the system/equipment and support planned for it. 174
DoD Missile Defense Agency - Cite This Source - This Definition
Browse Related Terms: Ballistic Missile Defense Operations Center (BMDOC), Combat Service Support, Fixed Ground Station, I-MOSC, Integrated Logistics Support (ILS), Integrated Logistics Support (ILS) Elements, Life-Cycle Model, Logistics, Logistics Support, Maintenance Concept/Plan, Mission Critical Computer Resources, Software Support

maintenance control circuit (MCC) - permalink - collapse

All > Technology > Telecommunications

In a communications link, a circuit used by maintenance personnel for coordination. Note: An MCC is not available to operations or technical control personnel.
ATIS - Cite This Source - This Definition
Browse Related Terms: express orderwire, multipoint circuit, open circuit, phantom group, resistance hybrid, side circuit, supervisory signals, tail circuit

maintenance costs - permalink - collapse

All > Business > Real Estate

The cost of the upkeep of the house. These costs may be minor in cost and nature (replacing washers in the faucets) or major in cost and nature (new heating system or a new roof) and can apply to either the interior or exterior of the house.
Ginnie Mae - Cite This Source - This Definition
Browse Related Terms: Asbestos, Average Price, Detached house, HVAC, Median Price, radon, utility costs

Maintenance Fee - permalink - collapse

All > Law > Intellectual Property > Patent

See Fee, Maintenance.
Robert M. Hunter, Ph.D. - Cite This Source - This Definition
Browse Related Terms: Annuity, Fee, Filing, Fee, Issue, Fee, Maintenance, Fee, Petition, Filing Fee, Forfeited Application, Issue Fee, Lapse Date, maintenance, maintenance fees, Renewal Fee

maintenance fees - permalink - collapse

All > Law > Intellectual Property > Patent

In the United States, maintenance fees or taxes must be paid at 3.5, 7.5, and 11.5 years after issuance of a patent in order to maintain the patent in force.
Arnold Silverman and George Stacey - Cite This Source - This Definition
fees for maintaining in force a patent based on an application filed on or after December 12, 1980 --see MPEP 2500 for more
USPTO - Cite This Source - This Definition
Browse Related Terms: Annuity, Fee, Filing, Fee, Issue, Fee, Maintenance, Fee, Petition, Filing Fee, Forfeited Application, Issue Fee, Lapse Date, maintenance, Maintenance Fee, Renewal Fee

maintenance hook - permalink - collapse

All > Technology > Telecommunications

A trapdoor in software that allows easy maintenance and development of additional features and that may allow entry into the program at unusual points or without the usual checks. [2382-pt.8] 2. Special instructions (trapdoors) in software allowing easy maintenance and additional feature development. Since maintenance hooks frequently allow entry into the code without the usual checks, they are a serious security risk if they are not removed prior to live implementation. [INFOSEC-99]
ATIS - Cite This Source - This Definition
Browse Related Terms: infrastructure assurance, infrastructure protection, risk acceptance, Vulnerability Assessment