Definitions beginning with M

It used to be possible to repeat the HTML title tag in the header section of a page several times to improve search engine positioning. Most search engines now detect this trick.
I-Search Digest - Cite This Source - This Definition
Browse Related Terms: Bush, Vannevar, Click through, Headline, Misspellings, Page title, Title, Title Attribute, Title tag

A tornado in which two or more condensation funnels or debris clouds are present at the same time, often rotating about a common center or about each other. Multiple-vortex tornadoes can be especially damaging.
NOAA National Weather Service - Cite This Source - This Definition
Browse Related Terms: Cold Air Funnel, Condensation Funnel, Debris Cloud, funnel cloud, NRW, Rope, Rope Stage, Tornado, Wedge Tornado

1. In frequency-division multiplexing, the frequency band occupied by the aggregate of the signals in the line interconnecting the multiplexing and radio or line equipment. 2. In frequency division multiplexed carrier systems, at the input to any stage of frequency translation, the frequency band occupied. Note: For example, the output of a group multiplexer consists of a band of frequencies from 60 kHz to 108 kHz. This is the group-level baseband that results from combining 12 voice-frequency input channels, having a bandwidth of 4 kHz each, including guard bands. In turn, 5 groups are multiplexed into a super group having a baseband of 312 kHz to 552 kHz. This baseband, however, does not represent a group-level baseband. Ten super groups are in turn multiplexed into one master group, the output of which is a baseband that may be used to modulate a microwave-frequency carrier.
ATIS - Cite This Source - This Definition
Browse Related Terms: add/drop multiplexing, carrier multiplex, heterogeneous multiplexing, homogeneous multiplexing, multiplex hierarchy, multiplex (MUX), multiplexer (MUX), multiplexing equipment, multiplexing (MUXing), orderwire multiplex, PCM multiplex equipment, statistical multiplexing, T-carrier, transmultiplexer

A device that combines the functions of multiplexing and demultiplexing of digital signals. Note: The term muldem should not be confused with modem.
ATIS - Cite This Source - This Definition
Browse Related Terms: demultiplex (DEMUX), demultiplexing, deMUX, muldem, multiplexer/demultiplexer (muldem)

In frequency-division multiplexing, the rank of frequency bands occupied:

Browse Related Terms: add/drop multiplexing, carrier multiplex, heterogeneous multiplexing, homogeneous multiplexing, multiplex baseband, multiplex (MUX), multiplexer (MUX), multiplexing equipment, multiplexing (MUXing), orderwire multiplex, PCM multiplex equipment, statistical multiplexing, T-carrier, transmultiplexer

A laboratory approach that performs multiple sets of reactions in parallel (simultaneously); greatly increasing speed and throughput.
Human Genome Project - Cite This Source - This Definition
Browse Related Terms: amplification, Microarray, polymerase chain reaction (PCR), Primer