linear programming (LP)In operations research, a procedure for locating the maximum or minimum of a linear function of variables that are subject to linear constraints.
linearityThe property of a system in which, if input signals X and Y result in system output S(X) and S(Y) respectively, the input signal aX + bY will result in…
linearized vectorA covalently closed circular DNA vector (typically a plasmid ) which has been opened by restriction digestion to convert it to a linear molecule.
linearly polarized (LP) modeA mode for which the field components in the direction of propagation are small compared to components perpendicular to that direction.
linearly scalableThe system will be predictable and efficient in growing the application. If one server can process 1,000 transactions per second, two servers should be…
LinerA relatively impermeable barrier designed to keep leachate inside a landfill. Liner materials include plastic and dense clay.
linguistic searchA search type that browses, retrieves, and indexes a document with terms that are reduced to their base form (for example, so that "mice" is indexed as…
LinguisticsThe study of the nature, structure, and variation of language. In advanced enterprise search platforms, linguistics analysis enables transformation of…
LiningAny protective material used to line the interior surface of a conduit, pipe, or tunnel.
link analysisA method that is based on the analysis of hyperlinks between documents and used to determine what pages in the collection are important to users.
Link baitUseful or entertaining web content which compels users to link to it.
Link BaitingThe art of targeting, creating, and formatting information that provokes the target audience to point high quality links at your site.
Link BuildingThe process of building high quality linkage data that search engines will evaluate to trust your website is authoritative, relevant, and trustworthy.
Link BurstsA rapid increase in the quantity of links pointing at a website. When links occur naturally they generally develop over time.
Link cardinalityThe number of links in a set that refer to a given document. It is best used to determine the relevancy of a Web page by factoring in how many other pages…
Link ChurnThe rate at which a site loses links. See also: Information retrieval based on historical data
Link Dead (LD)A player who has actually lost connection to the game server, but his character is still in the game and has not timed out yet.
link diversityThe process of provisioning signaling links with physically separate transmission routes between signaling points to mitigate impact of facility failures.
Link EncryptionLink encryption encrypts all of the data along a communications path (e.g., a satellite link, telephone circuit, or T1 line).
Link EquityA measure of how strong a site is based on its inbound link popularity and the authority of the sites providing those links.
Link FarmWebsite or group of websites which exercises little to no editorial control when linking to other sites. FFA pages, for example, are link farms.
Link HoardingA method of trying to keep all your link popularity by not linking out to other sites, or linking out using JavaScript or through cheesy redirects.
Link LayerDeprecated term for Data Link Layer. See Open Systems Interconnection--Reference Model.
link levelIn the hierarchical structure of a primary or secondary station, the conceptual level of control or data processing logic that controls the data link.
link orderwireA voice or data communications circuit that (a) serves as a transmission link between adjacent communications facilities that are interconnected by a…
link protocolA set of rules relating to data communications over a data link. Note: Link protocols define data link parameters, such as transmission code, transmission…
link quality analysis (LQA)In adaptive high-frequency (HF) radio, the overall process by which measurements of signal quality are made, assessed, and analyzed.
Link Quality EvaluationThis testing of links to create bit error estimates and monitors natural or induced link interference.
Link ReputationThe combination of your link equity and anchor text.
Link RotA measure of how many and what percent of a website's links are broken. Links may broken for a number of reason, but four of the most common reasons are…
link setA set of signaling links directly connecting two signaling points.[T1.226-1992]
Link spamLinks between pages that are specifically set up to take advantage of link-based ranking algorithms such as Google's PageRank (PR).
link state controlThe control that coordinates functions of the signaling link, including signal unit delimitation, signal unit alignment, error detection, error…
link state informationInformation about the state of messaging routes (links) in an Exchange Server 2003 messaging system that is determined using the link state algorithm to…
link state tableThe database used on each Exchange Server 2003 server to store link state information propagated by the link state algorithm.
link status signal unitA signal unit that contains status information about the signaling link in which it is transmitted. [T1.110-1987]
link-by-link enciphermentThe individual application of encipherment to data on each link of a communications system [7498-2].
LinkAccessA feature that allows access to SharePoint documents and sites and documents on shares inside of a corporate network through Outlook Web Access when it is…
linkageThe frequency of coinheritance of a pair of genes and/or genetic markers, which provides a measure of their physical proximity to one another on a…
Linked genes/markersGenes and/or markers that are so closely associated on the chromosome that they are coinherited in 80% or more of cases.
linked registrationA type of AllCall registration feature, the use of which combines the registrations for incoming and outgoing calls for the current terminal address in a…
linkerA short, double-stranded oligonucleotide containing a restriction endonuclease recognition site, which is ligated to the ends of a DNA fragment.
linking protection (LP)In adaptive high-frequency (HF) radio, protection intended to prevent the establishment of unauthorized links or the unauthorized manipulation of…
Linkstext or graphics that, when clicked on, take the Internet user to another web page location. Links are expressed as URLs.
linseedThe seed of the flax plant. It is a rich source of omega-3 fatty acid, fiber, and a compound called lignin.
LintelA horizontal structural element over an opening which carries the weight of the wall above it.
linuxA freeware version of the Unix™ operating system.
Lioresal(lih-OR-eh-sal) A drug that is used to treat certain types of muscle spasms and is being studied in the treatment of liver cancer.
liothyronine sodium(LY-oh-THY-roh-neen SOH-dee-um) A drug that is used to treat certain thyroid (a gland located near the voice box) conditions.
Lipitor(LIH-pih-tor) A drug used to lower the amount of cholesterol in the blood and to prevent stroke, heart attack, and angina (chest pain).
lipless crankbaitsArtificial baits designed to resemble a swimming baitfish. Such baits typically vibrate or wobble during the retrieve; some have built-in rattles.
LipoDoxA form of the anticancer drug doxorubicin that is contained in very tiny, fat-like particles.
lipofectionDelivery into eukaryotic cells of DNA, RNA or other compounds that have been encapsulated in liposomes.
lipoma(lih-POH-muh) A benign (not cancer) tumor made of fat cells.
lipophilicAble to dissolve, be dissolved in, or absorb lipids (fats).
lipopolysaccharide(Abbreviation: LPS). A compound containing lipid bound to a polysaccharide; often a component of microbial cells walls.
liposomal(LY-poh-SOH-mul) A drug preparation that contains the active drug inside very tiny, fat-like particles.
liposomal cytarabine(LY-poh-SOH-mul sy-TAYR-uh-been) A form of the anticancer drug cytarabine that is contained inside very tiny, fat-like particles.
liposomal SN-38(LY-poh-SOH-mulâ¦) A form of the anticancer drug irinotecan that is contained in very tiny, fat-like particles.
liposome(LY-puh-some) A very tiny, fat-like particle that is made in the laboratory. In medicine, liposomes containing drugs or other substances are used in the…
LiposomesMembrane-bound vesicles constructed in the laboratory to transport biological molecules.
Lipper, IncLipper provides financial data and performance analysis for more than 30,000 open- and closed-end mutual funds and variable annuities worldwide.
lippingA method of landing fish, especially bass, by placing a thumb into its mouth to bend the lip down slightly, temporarily paralyzing the fish to get it into…
LiquefactionEnzymatic digestion (often by alpha-amylase) of gelatinized starch to form lower molecular weight polysaccharides.
Liquefied natural gas(LNG) Natural gas that has been condensed to a liquid by cooling the gas.
Liquefied natural gas (LNG)Reducing the temperature of natural gas to -259 degrees Fahrenheit at atmospheric pressure will convert the gas into a liquid, with a volume about 1/600…
Liquefied petroleum gas (LPG)Ethane, ethylene, propane, propylene, normal butane, butylene, and isobutane produced at refineries or natural gas processing plants, including plants…
Liquid AssetLiquid assets are accounts or securities that can be easily converted to cash at little or no loss of value.
liquid crystal display (LCD)A display device that creates characters by means of the action of electrical signals on a matrix of liquid cells that become opaque when energized.
Liquid FuelAny liquid fuel including gasoline, diesel fuel (even dyed), special motor fuel, or bunker C residual fuel oil.
Liquid Fuel Booster (LFB)Target booster being developed to mate with current reentry vehicles and emulate the short/medium range threat.
Liquid hydrocarbonOne of a very large group of chemical compounds composed only of carbon and hydrogen. The largest source of hydrocarbons is petroleum.
Liquid limit (LL)The moisture content corresponding to the arbitrary limit between the liquid and plastic states of consistency of a soil.
liquid mediumCulture solution, without a solidifying agent, for in vitro cell growth.
liquid membraneThin films made up of liquids (as opposed to solids) which are stable in another liquid (usually water).
liquid nitrogenNitrogen gas condensed to a liquid with a boiling point of about -196 °C. Commonly used as a medium for long-term storage of biological materials.
Liquid Water EquivalentSame as Water Equivalent; the liquid content of solid precipitation that has accumulated on the ground (snow depth).
liquid water path (gm/m^2)A measure of the weight of the liquid water droplets in the atmosphere above a unit surface area on the earth, given in units of kg m-2.
liquid-based Pap testA type of Pap test. A Pap test is a procedure in which cells are scraped from the cervix for examination under a microscope.