Definitions beginning with M

Motor efficiency - permalink - collapse

All > Science > Water

The ratio of energy delivered by a motor to the energy supplied to it during a fixed period or cycle.

Bureau of Reclamation - Cite This Source - This Definition
Browse Related Terms: Blockloading, Climatic year, Fling, Freezeout, Irretrievable, Irreversible, Minimum flow, Natural period of vibration (T), Peak flow, Predominant period, Quaternary

Motor gasoline - permalink - collapse

All > Science > Climate Change

A complex mixture of relatively volatile hydrocarbons, with or without small quantities of additives, obtained by blending appropriate refinery streams to form a fuel suitable for use in spark-ignition engines. Motor gasoline includes both leaded and unleaded grades of finished gasoline, blending components, and gasohol. See hydrocarbons.
EPA - Cite This Source - This Definition
Browse Related Terms: Aviation gasoline, biofuel, Ethanol (C, Gasohol, Methanol (CH<sub>3</sub>3OH)

Motorola - permalink - collapse

All > Technology > Telecommunications > Mobile > Android

Manufacturer of smartphones and other hand-held wireless devices.
Android Central - Cite This Source - This Definition
Browse Related Terms: CES, CTIA, Dream, G1, HTC, LG, Mobile World Congress (MWC), MSM, OEM, USB

A vertical-axis eddy produced in a downslope windstorm by the vertical stretching of horizontal roll vortices produced near the ground by vertical wind shear. Mountainadoes, when carried by the mean wind, can produce strong horizontal shears and wind gusts that are much more damaging than the general prevailing wind speeds.
NOAA National Weather Service - Cite This Source - This Definition
Browse Related Terms: Anemometer, Funnelling, Isotach, Mid-Flame Wind, Peak Gust, Peak Wind Speed, Speed Shear, Squall, Sustained Wind, Wind Speed

Mountain-Plain Wind System - permalink - collapse

All > Science > Weather

A closed, large-scale, thermally driven circulation between the mountains and the surrounding plain. The mountain-to-plain flow making up the lower branch of the closed circulation usually occurs during nighttime, while the plain-to-mountain flow occurs during daytime.
NOAA National Weather Service - Cite This Source - This Definition
Browse Related Terms: Avalanche Advisory, MST, MT, Mtn, MTNS, MTS, RCKY

Mountain Wave - permalink - collapse

All > Science > Weather

The wavelike effect, characterized by updrafts and downdrafts, that occurs above and behind a mountain range when rapidly flowing air encounters the mountain range's steep front.
NOAA National Weather Service - Cite This Source - This Definition
Browse Related Terms: Breakers, Corner Effects, Fetch, Lee Wave, Orographic Waves, Refractive Index, Steepness, Tsunami, Wave Steepness

Mountain Wind System - permalink - collapse

All > Science > Weather

The system of diurnal winds that forms in a complex terrain area, consisting of mountain-plain, along-valley, cross-valley and slope wind systems.
NOAA National Weather Service - Cite This Source - This Definition
Browse Related Terms: Channeled High Winds, Complex Terrain, Orographic, Puget Sound Convergence Zone, Terrain Forced Flow, TRRN

Mount/Mounting - permalink - collapse

All > Law > E-Discovery

The process of making off-line data available for on-line processing. For example, placing a magnetic tape in a drive and setting up the software to recognize or read that tape. The terms "load" and "loading" are often used in conjunction with, or synonymously with, "mount" and "mounting" (as in "mount and load a tape"). "Load" may also refer to the process of transferring data from mounted media to another media or to an on-line system.
Renew Data - Cite This Source - This Definition
The process of making off-line data available for on-line processing. For example, placing a magnetic tape in a drive and setting up the software to recognize or read that tape. The terms load and loading are often used in conjunction with, or synonymously with, mount and mounting (as in mount and load a tape). Load may also refer to the process of transferring data from mounted media to another media or to an on-line system.
AmDoc - Cite This Source - This Definition
Browse Related Terms: Archival Data, EDD (Electronic Data Discovery), Hierarchical Storage Management (HSM), Jaz Drive, Magnetic/Optical Storage Media, Off-Line Storage, Storage Device, Storage Media, Tape Drive, Zip Drives

Mount Pinatubo - permalink - collapse

All > Science > Climate Change

A volcano in the Philippine Islands that erupted in 1991. The eruption of Mount Pinatubo ejected enough particulate and sulfate aerosol matter into the atmosphere to block some of the incoming solar radiation from reaching Earth's atmosphere. This effectively cooled the planet from 1992 to 1994, masking the warming that had been occurring for most of the 1980s and 1990s.
EPA - Cite This Source - This Definition
A volcano in the Philippine Islands that erupted in 1991. The eruption of Mount Pinatubo ejected enough particulate and sulfate aerosol matter into the atmosphere to block some of the incoming solar radiation from reaching Earth's atmosphere. This effectively cooled the planet from 1992 to 1994, masking the warming that had been occurring for most of the 1980s and 1990s.
EPA - Cite This Source - This Definition
Browse Related Terms: Absorption of radiation, Heat balance of the Earth-atmosphere system, insolation, Photovoltaic and solar thermal energy, radiation, Solar energy, Solar Radiation, solar variability, ultraviolet radiation, Ultraviolet Radiation (UV)

Mount Point - permalink - collapse

All > Technology > Storage

A mount point is a directory on a volume that an application can use to "mount" (set up for use) a different volume. Mount points overcome the limitation on drive letters and allow more logical organization of files and folders.
Microsoft - Cite This Source - This Definition
Browse Related Terms: DFS, DFS (Distributed File System), Distributed File System (DFS), FRS (File Replication Service), LFS, log-structured file system (LFS), NTFS file system

Mount Wilson Magnetic Classifications - permalink - collapse

All > Science > Weather

In solar-terrestrial terms, a classification system for sunspots:
- Alpha: Denotes a unipolar sunspot group.
- Beta: A sunspot group having both positive and negative magnetic polarities, with a simple and distinct division between the polarities.
- Beta-Gamma: A sunspot group that is bipolar but in which no continuous line can be drawn separating spots of opposite polarities.
- Delta: A complex magnetic configuration of a solar sunspot group consisting of opposite polarity umbrae within the same penumbra.
- Gamma: A complex active region in which the positive and negative polarities are so irregularly distributed as to prevent classification as a bipolar group.
NOAA National Weather Service - Cite This Source - This Definition
Browse Related Terms: Leader Spot, Penumbra, sunspot, Sunspot Group Classification, Sunspot Number, Umbra, Zurich Sunspot Classification

mouse - permalink - collapse

All > Technology > Telecommunications

A hand-held computer input device that generates signals that increment, i.e., slew, the position of a cursor on a video display. Note: A mouse is placed on a flat surface and moved manually in the direction in which it is desired to move the cursor. A mouse has momentary switches ("buttons") that may be finger-operated to trigger an event after the cursor is positioned correctly.
ATIS - Cite This Source - This Definition
Browse Related Terms: crosstalk (XT), H-channel, line-rate conversion, p × 64, teletraining

Mouse embryonic fibroblast (MEF) - permalink - collapse

All > Science > Biotechnology and Genetics > Stem Cell

Mouse embryonic fibroblast cells are used as feeder cells when culturing pluripotent stem cells.
DHHS - Cite This Source - This Definition
Browse Related Terms: Feeder cell layer, Feeder layer

mouse model - permalink - collapse

All > Medicine > Cancer

The use of special strains of mice to study a human disease or condition, and how to prevent and treat it.
National Cancer Institute - Cite This Source - This Definition
Browse Related Terms: acustimulation, antiapoptotic, EGb761, electroacupuncture, L-carnitine, levocarnitine, preventive, prophylaxis

All > Science > Biotechnology and Genetics > Human Genome

See: model organisms
Human Genome Project - Cite This Source - This Definition
A laboratory mouse useful for medical research because it has specific characteristics that resemble a human disease or disorder. Strains of mice having natural mutations similar to human ones may serve as models of such conditions. Scientists can also create mouse models by transferring new genes into mice or by inactivating certain existing genes in them. See also gene, genome, mutation, transgenic
National Human Genome Research Institute - Cite This Source - This Definition
Browse Related Terms: animal model, Backcross, blast, Comparative genomics, knockout, Microbial genetics, Model organisms, Modeling, Molecular farming

Mouseover - permalink - collapse

All > Technology > Search > SEO / Search Marketing

Where hovering the mouse over a text or graphic link without clicking displays something new on the page. For example, a horizontal navigation bar may display further sub-section choices underneath the section hovered over.
SEO Glossary.com - Cite This Source - This Definition
Browse Related Terms: Accessibility, Body copy, Standards compliant, Web standards

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Motor efficiency - permalink - collapse

Motor gasoline - permalink - collapse

Motorola - permalink - collapse

MOTR - permalink - collapse

Motrin - permalink - collapse

MOTS - permalink - collapse

MOU - permalink - collapse

mount - permalink - collapse

Mountainado - permalink - collapse

Mountain-Plain Wind System - permalink - collapse

Mountain Wave - permalink - collapse

Mountain Wind System - permalink - collapse

Mount/Mounting - permalink - collapse

Mount Pinatubo - permalink - collapse

Mount Point - permalink - collapse

Mount Wilson Magnetic Classifications - permalink - collapse

mouse - permalink - collapse

Mouse embryonic fibroblast (MEF) - permalink - collapse

mouse model - permalink - collapse

Mouseover - permalink - collapse