Definitions beginning with G

glide slope facility - permalink - collapse

All > Technology > Telecommunications

In aeronautical navigation, an instrument approach landing facility that furnishes vertical guidance information to an aircraft from its approach altitude down to the surface of the runway.
ATIS - Cite This Source - This Definition
Browse Related Terms: instrument landing system glide path, instrument landing system (ILS), instrument landing system localizer

glioblastoma - permalink - collapse

All > Medicine > Cancer

(GLEE-oh-blas-TOH-muh) A fast-growing type of central nervous system tumor that forms from glial (supportive) tissue of the brain and spinal cord and has cells that look very different from normal cells. Glioblastoma usually occurs in adults and affects the brain more often than the spinal cord. Also called GBM, glioblastoma multiforme, and grade IV astrocytoma.
National Cancer Institute - Cite This Source - This Definition
Browse Related Terms: GBM, glial tumor, glioblastoma multiforme, grade IV astrocytoma

glioblastoma multiforme - permalink - collapse

All > Medicine > Cancer

(GLEE-oh-blas-TOH-muh MUL-tih-form) A fast-growing type of central nervous system tumor that forms from glial (supportive) tissue of the brain and spinal cord and has cells that look very different from normal cells. Glioblastoma multiforme usually occurs in adults and affects the brain more often than the spinal cord. Also called GBM, glioblastoma, and grade IV astrocytoma.
National Cancer Institute - Cite This Source - This Definition
Browse Related Terms: GBM, glial tumor, glioblastoma, grade IV astrocytoma

glioma - permalink - collapse

All > Medicine > Cancer

(glee-OH-muh) A cancer of the brain that begins in glial cells (cells that surround and support nerve cells).
National Cancer Institute - Cite This Source - This Definition
Browse Related Terms: glial cell, Glial cells, gliosarcoma, mixed glioma, neuroglia, optic pathway glioma, visual pathway glioma

gliosarcoma - permalink - collapse

All > Medicine > Cancer

(GLEE-oh-sar-KOH-muh) A type of glioma (cancer of the brain that comes from glial, or supportive, cells).
National Cancer Institute - Cite This Source - This Definition
Browse Related Terms: glial cell, Glial cells, glioma, mixed glioma, neuroglia, optic pathway glioma, visual pathway glioma

glob - permalink - collapse

All > Technology > Programming > Perl

Strictly, the shell's * character, which will match a "glob" of characters when you're trying to generate a list of filenames. Loosely, the act of using globs and similar symbols to do pattern matching. See also "fileglob" and "typeglob".
Perl - Cite This Source - This Definition
Browse Related Terms: backtracking, fileglob, leftmost longest, Matching, pattern, Pattern Matching, progressive matching, run-time pattern

global - permalink - collapse

All > Technology > Programming > Perl

Something you can see from anywhere, usually used of variables and subroutines that are visible everywhere in your program. In Perl, only certain special variables are truly global--most variables (and all subroutines) exist only in the current "package". Global variables can be declared with our. See "our" in perlfunc.
Perl - Cite This Source - This Definition
Browse Related Terms: Alias, Closure, dynamic scoping, lexical scoping, lexical variable, local, scope, scratchpad, static, static scoping, static variable

All > Technology > Telecommunications

Pertaining to, or involving, the entire world. 2. Pertaining to that which is defined in one subsection of an entity and used in at least one other subsection of the same entity. 3. In computer, data processing, and communications systems, pertaining to what is applicable to an area beyond the immediate area of consideration. Note: Examples of global entities are (a) in computer programming, an entity that is defined in one subdivision of a computer program and used in at least one other subdivision of that program and (b) in personal computer systems and their software packages, a setting, definition, or condition that applies to the entire software system. [From Weik '89]
ATIS - Cite This Source - This Definition
Browse Related Terms: Abstraction, applet, application program, Application Program Interface (API), application software, database engineering, hack, JavaTM, open system application program interface, platform, software package, transaction, transaction application program

global address - permalink - collapse

All > Technology > Telecommunications

In a communications network, the predefined address that is used as an address for all users of that network, and that may not be the address of an individual user, or subgroup of users, of the network.
ATIS - Cite This Source - This Definition
Browse Related Terms: group address, jurisdiction

global area network (GAN) - permalink - collapse

All > Technology > Telecommunications

A network that (a) is composed of different interconnected computer networks and (b) covers an unlimited geographical area. Note: Loosely synonymous with an internet (as opposed to the Internet (with an uppercase "I"), which designates one specific network). [After 2382-pt.35]
ATIS - Cite This Source - This Definition
Browse Related Terms: Automatic Congestion Control, computer network, extranet, interconnecting networks (ICNs), Interconnection, interconnectivity, Intermediate Network, Internet, Internet [the], internetworking, Network Modification, network number, specification point, subnetwork

Global Catalog - permalink - collapse

All > Technology > E-mail > Microsoft Email > Microsoft Exchange > Microsoft Exchange 2003

A directory database that applications and clients can query to locate any object in a forest. The global catalog is hosted on one or more domain controllers in the forest. It contains a partial replica of every domain directory partition in the forest. These partial replicas include replicas of every object in the forest, as follows: the attributes most frequently used in search operations and the attributes required to locate a full replica of the object. [Exchange 2003]
Microsoft - Cite This Source - This Definition
Browse Related Terms: Domain Controller, extended rights, Forest, trust relationship

All > Technology > Operating System > Microsoft Windows > Microsoft Windows Server > Microsoft Active Directory

Allows forests to share a portion of their entire AD database. GC supports research and indexing of forest-wide information.
Les Entreprises Resolutions Enterprises - Cite This Source - This Definition
Browse Related Terms: Domain, Domain Tree, Forest, Forest trusts, GC, Global Catalog (GC), Global Catalog server, PFRD, Protected Forest Root Domain (PFRD), Tree, UPN

Global Catalog (GC) - permalink - collapse

All > Technology > Operating System > Microsoft Windows > Microsoft Windows Server > Microsoft Active Directory

The global catalog contains a partial replica of every Windows 2000 /Windows 2003 domain in the directory. The GC lets users and applications find objects in an Active Directory domain tree, given one or more attributes of the target object. It also contains the schema and configuration of directory partitions. This means the global catalog holds a replica of every object in the Active Directory, but with only a small number of their attributes. The attributes in the global catalog are those most frequently used in search operations (such as a user's first and last names, logon names, and so on), and those required to locate a full replica of the object. The GC allows users to find objects of interest quickly without knowing what domain holds them and without requiring a contiguous (a single logical directory tree, as opposed to a set of directory trees) extended namespace in the enterprise. The global catalog is built automatically by the Active Directory replication system.
GuardianEdge Technologies - Cite This Source - This Definition
Browse Related Terms: Domain, Domain Tree, Forest, Forest trusts, GC, Global Catalog, Global Catalog server, PFRD, Protected Forest Root Domain (PFRD), Tree, UPN

Global Catalog server - permalink - collapse

All > Technology > Operating System > Microsoft Windows > Microsoft Windows Server > Microsoft Active Directory

Holds a copy of the forest-wide database within each domain. It has three functions: Find objects, allow User Principal Name (UPN) logons, and support Universal groups.
Les Entreprises Resolutions Enterprises - Cite This Source - This Definition
A Windows 2000 / Windows 2003 domain controller that holds a copy of the global catalog for the forest.
GuardianEdge Technologies - Cite This Source - This Definition
Browse Related Terms: Domain, Domain Tree, Forest, Forest trusts, GC, Global Catalog, Global Catalog (GC), PFRD, Protected Forest Root Domain (PFRD), Tree, UPN

Global Debt Facility - permalink - collapse

All > Business > Real Estate

Designed to allow investors all over the world to purchase debt (loans) of U.S. dollar and foreign currency through a variety of clearing systems.
US Department of Housing and Urban Development - Cite This Source - This Definition
Browse Related Terms: Bankruptcy, debt, Deed-in-Lieu, Financing, Gift, Mutual Funds, Pre-foreclosure Sale, Soldiers and Sailors Civil Relief Act

Global depositary receipt (GDR) - permalink - collapse

All > Business > Finance > Personal Finance

To raise money in more than one market, some corporations use global depositary receipts (GDRs) to sell their stock on markets in countries other than the one where they have their headquarters.
The GDRs are issued in the currency of the country where the stock is trading. For example, a Mexican company might offer GDRs priced in pounds in London and in yen in Tokyo.
Individual investors in the countries where the GDRs are issued buy them to diversify into international markets. GDRs let you do this without having to deal with currency conversion and other complications of overseas investing.
However, since GDRs are frequently offered by newer or less-known companies, the prices are often volatile and the stocks may be thinly traded. That makes buying GDRs riskier than buying domestic stocks.

Yahoo Finance - Cite This Source - This Definition
Browse Related Terms: American depositary receipt (ADR), Closed-end fund, Diversified Mutual Fund, Emerging markets fund, Global fund, international fund, investment company, Offshore fund, Sector fund, Sector Mutual Fund, World fund

global destruction - permalink - collapse

All > Technology > Programming > Perl

The "garbage collection" of globals (and the running of any associated object destructors) that takes place when a Perl "interpreter" is being shut down. Global destruction should not be confused with the Apocalypse, except perhaps when it should.
Perl - Cite This Source - This Definition
Browse Related Terms: accessor method, class, class method, destroy, destructor, dispatch, encapsulation, Handler, invocant, invocation, method, static method

Global Environment - permalink - collapse

All > Technology > Defense

The ISTC Global Environment is responsible for the creation, propagation, and maintenance of test scenario common knowledge, how subsets of this information will be determined, and how common knowledge will be disseminated to the various element representations (nodes). The Global Environment performs functions which are common to the scenario such as timing, health, status, state vectors of objects, and effects models.
DoD Missile Defense Agency - Cite This Source - This Definition
Browse Related Terms: Environments, Global Environment (GE), NEA, SWG

Global Environment (GE) - permalink - collapse

All > Technology > Defense

The ISTC Global Environment is responsible for the creation, propagation, and maintenance of test scenario common knowledge, how subsets of this information will be determined, and how common knowledge will be disseminated to the various element representations (nodes). The Global Environment performs functions which are common to the scenario such as timing, health, status, state vectors of objects, and effects models.
DoD Ballistic Missile Defense Glossary v3.0 - Cite This Source - This Definition
Browse Related Terms: Environments, Global Environment, NEA, SWG

Global File System - permalink - collapse

All > Technology > Storage

In some configurations, as with clusters or multiple NAS boxes, it is useful to have a means to make the file systems on multiple servers or devices look like a single file system. A global or dispersed file system would enable storage administrators to globally build or make changes to file systems. To date this remains an emerging technology.
Microsoft - Cite This Source - This Definition
Browse Related Terms: active file system, DAFS (Direct Access File System), DOS attributes, File Data, File server, mount, NT file system (NTFS), NTFS, Snapshot, Snapshot Technology, special device file, unmount, widelink

Global Forecast System - permalink - collapse

All > Science > Weather

(GFS)- One of the operational forecast models run at NCEP. The GFS is run four times daily, with forecast output out to 384 hours.
NOAA National Weather Service - Cite This Source - This Definition
Browse Related Terms: CDB, ETA, Eta Model, GFS, MRF, NAM, NGM, NOGAPS, QPFERD, RUC, WAVEWATCH III