Glacial striationsLines carved into rock by overriding ice, showing the direction of glacial movement.
Glacial tillAn unsorted, unstratified mixture of fine and coarse rock debris deposited by a glacier.
GlaciationThe transformation of cloud particles from water drops to ice crystals. Thus, a cumulonimbus cloud is said to have a "glaciated" upper portion.
GlacierBodies of land ice that consist of recrystallized snow accumulated on the surface of the ground, and that move slowly downslope.
Glacier (ice sheet)A large thick mass of ice formed on land by the compacting and recrystallization of old snow and move under the influence of gravity.
Glacier Dammed LakeThe lake formed when a glacier flows across the mouth of an adjoining valley and forms an ice dam.
Glacier WindA shallow downslope wind above the surface of a glacier, caused by the temperature difference between the air in contact with the glacier and the free air…
Gladwell, MalcolmPopular author who wrote the book titled The Tipping Point. See also: Gladwell.
glandAn organ that makes one or more substances, such as hormones, digestive juices, sweat, tears, saliva, or milk.
Gland MartingaleTongue in cheek name for a limited Martingale System of two steps after a predetermined number of even-money decisions has occurred.
gland of Lieberkuhn(... LEE-ber-keen) Tube-like gland found in the lining of the colon and rectum. Glands of Lieberkuhn renew the lining of the intestine and make mucus.
glans penisThe rounded, gland-like head of the penis.
GlareThe excessive brightness from a direct light source that makes it difficult to see what one wishes to see.
glare masterThe Signaling System No. 7 (SS7) switch designated as control switch for circuits in the both-way circuit group.
glassIn the strict sense, a state of matter. [FAA] 2. In fiber-optic communication, any of a number of noncrystalline, amorphous inorganic substances, formed…
Glauber's SaltA salt, sodium sulfate decahydrate, that melts at 90 degrees Fahrenheit; a component of eutectic salts that can be used for storing heat.
Glaucoma(glaw-KOH-muh) A condition in which there is a build-up of fluid in the eye, which presses on the retina and the optic nerve.
glaucousA surface with a waxy, white coating. In most cases, this waxy covering can be rubbed off.
GlazeIce formed by freezing precipitation covering the ground or exposed objects.
GlazingThe material, usually glass, that fills spaces between sash members (rails, stiles and muntins), commonly referred to as panes or lights.
Gleason score(GLEE-sun...) A system of grading prostate cancer tissue based on how it looks under a microscope.
Gleevec(GLEE-vek) A drug used to treat different types of leukemia and other cancers of the blood, gastrointestinal stromal tumors, skin tumors called…
GLF(Open Lakes Forecast) - A National Weather Service marine forecast product for the U.S.
GliaThe nonneuronal or supporting tissue (neuroglia) of the brain and spinal cord.
Gliadel WaferA biodegradable wafer that is used to deliver the anticancer drug carmustine directly into a brain tumor site after the tumor has been removed by surgery.
glial cell(GLEE-ul sel) Any of the cells that hold nerve cells in place and help them work the way they should.
Glial cells(glee'-ul sells) branched cells that make up the supporting structure of the nervous (brain & spinal cord) tissue.
glial tumorA general term for tumors of the central nervous system, including astrocytomas, ependymal tumors, glioblastoma multiforme, and primitive neuroectodermal…
glide slope facilityIn aeronautical navigation, an instrument approach landing facility that furnishes vertical guidance information to an aircraft from its approach altitude…
GlintA momentary flash of light resulting from a spatially localized reflection of sunlight. See also Glare
glioblastoma(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…
glioblastoma multiforme(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…
glioma(glee-OH-muh) A cancer of the brain that begins in glial cells (cells that surround and support nerve cells).
gliosarcoma(GLEE-oh-sar-KOH-muh) A type of glioma (cancer of the brain that comes from glial, or supportive, cells).
globStrictly, the shell's * character, which will match a "glob" of characters when you're trying to generate a list of filenames.
globalSomething you can see from anywhere, usually used of variables and subroutines that are visible everywhere in your program.
global addressIn 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…
global area network (GAN)A network that (a) is composed of different interconnected computer networks and (b) covers an unlimited geographical area.
Global CatalogA directory database that applications and clients can query to locate any object in a forest.
Global Catalog (GC)The global catalog contains a partial replica of every Windows 2000 /Windows 2003 domain in the directory.
Global Catalog ServerA Windows 2000 / Windows 2003 domain controller that holds a copy of the global catalog for the forest.
Global Debt FacilityDesigned to allow investors all over the world to purchase debt (loans) of U.S. dollar and foreign currency through a variety of clearing systems.
Global depositary receipt (GDR)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…
global destructionThe "garbage collection" of globals (and the running of any associated object destructors) that takes place when a Perl "interpreter" is being shut down.
Global EnvironmentThe ISTC Global Environment is responsible for the creation, propagation, and maintenance of test scenario common knowledge, how subsets of this…
Global Environment (GE)The ISTC Global Environment is responsible for the creation, propagation, and maintenance of test scenario common knowledge, how subsets of this…
Global File SystemIn 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…
Global Forecast System(GFS)- One of the operational forecast models run at NCEP. The GFS is run four times daily, with forecast output out to 384 hours.
global functional plane (GFP)The plane in the intelligent network conceptual model that defines service independent building blocks (SIBs) used in providing service features. [T1.
Global fundGlobal, or world, mutual funds invest in US securities as well as those of other countries.
Global Grid ForumThe standards body for defining standard specifications for global grids. www.gridforum.org
global groupA collection of user accounts in a Windows NT domain that are members of the domain in which the global group is defined.
Global Observing SystemGlobal Observing System (GOS) Global network of observational stations which is the coordinated system of methods, techniques and facilities for making…
Global Positioning System (GPS)A navigation system which uses a constellation of artificial earth satellites to make precise determinations of the latitude and longitude of locations on…
Global positioning systems (GPS)Space-based radio positioning systems that provide 24-hour, three-dimensional position, velocity, and time information to suitably equipped users anywhere…
Global Protection Against Limited Strikes (GPALS)OBSOLETE. GPALS was an architecture denoting an anti-missile system designed to provide protection against limited ballistic missile strikes, be they…
global security environmentA security domain in a System Security policy. The GSE is the general security environment in which the system is located.
global statusThe set of attributes of an entity, described at a particular time, when that set is extended to every occurrence of that entity within a prescribed…
global system for mobile communications (GSM)A public, all-digital cellular network that is standardized worldwide and that uses (a) TDMA techniques for multiplexing at approximately 900 MHz, (b)…
global system keyA tool used to configure the startup key, a random, 128-bit, symmetric cryptographic key created at system startup and used to encrypt all of the user`s…
Global Telecommunication SystemGlobal Telecommunication System (GTS) The coordinated global system of telecommunication facilities and arrangements for the rapid collection, exchange…
Global Temperature ChangeThe net result of four primary factors including the greenhouse effect, changes in incoming solar radiation, altered patterns of ocean circulations, and…
global title (GT)A "logical" or "virtual" address used for routing Signaling System No. 7 (SS7) messages using signaling connection control part (SCCP) capabilities.
global variableA phenomenon that is more usually regarded as being a problem in structured programming languages than in object-oriented languages.
Global WarmingA popular term used to describe the increase in average global temperatures due to the greenhouse effect.
Global Warming Potential (GWP)Global Warming Potential (GWP) is defined as the cumulative radiative forcing effects of a gas over a specified time horizon resulting from the emission…
globally unique identifierA 16-byte value generated from the unique identifier on a device, the current date and time, and a sequence number.
Globally Unique Identifier (GUID)A 16-byte value generated from the unique identifier on a device, the current date and time, and a sequence number.
Globex (GW)The electronic trading platform for the Chicago Mercantile Exchange (CME). Since Sept.
Globular ClustersA collection of hundreds of thousands of old stars held together by gravity.
globulinsCommon class of proteins in blood, eggs and milk, and seeds. Characterized by their slight solubility in water but are freely soluble in dilute salt…
GlobusA collaborative academic project centered at Argonne National Laboratory focused on enabling the application of grid concepts to computing.
Globus AllianceA group that conducts research and development for academic grids. The alliance, creators of the Globus Toolkit, includes representatives from Argonne…
Globus ToolkitA kit designed by the Globus Alliance to provide a set of tools based on standard grid APIs.
globusrun-wsA command line program used to submit jobs to a GRAM4 service. See the the GRAM4 Commandline page.
GloryAn optical effect characterized by concentric rings of color (red outermost and violet innermost) surrounding the shadow of an observer's head when the…
glossectomy(glah-SEK-toh-mee) Surgical removal of all or part of the tongue.
glottis(GLAH-tis) The middle part of the larynx; the area where the vocal cords are located.
GLS(Great Lakes Storm Summary) A National Weather Service forecast product providing updated information whenever a storm warning is in effect on any of the…
GlucagonA hormone produced by the pancreas that increases the level of glucose (sugar) in the blood.
glucagonoma(GLOO-kuh-guh-NO-ma) A rare pancreatic tumor that produces a hormone called glucagon. Glucagonomas can produce symptoms similar to diabetes.
glucanThe polymer of glucose with a repeating unit of C6H10O5. Cellulose is a form of glucan. Can be hydrolyzed to glucose. (Source: Voet, D.; Voet, J. G.
glucocorticoidA compound that belongs to the family of compounds called corticosteroids (steroids).
gluconeogenesisThe process of making glucose (sugar) from its own breakdown products or from the breakdown products of lipids (fats) or proteins.