kidney(KID-nee) One of a pair of organs in the abdomen. Kidneys remove waste from the blood (as urine), produce erythropoietin (a substance that stimulates red…
kidney cancer(KID-nee KAN-ser) Cancer that forms in tissues of the kidneys. Kidney cancer includes renal cell carcinoma (cancer that forms in the lining of very small…
kidney failure(KID-nee FAYL-yer) A condition in which the kidneys stop working and are not able to remove waste and extra water from the blood or keep body chemicals in…
kidney function test(KID-nee FUNK-shun ...) A test in which blood or urine samples are checked for the amounts of certain substances released by the kidneys.
kidneysTwin organs found in the lower part of the back. The kidneys purify the blood of all waste and harmful material.
Kill Assessment (KA)An evaluation of information to determine the result of a ballistic missile/RV intercept for the purpose of providing information for defense…
Kill Steal (KS)Taking a kill off someone by inflicting the killing blow.
killer appSlang contraction of killer application. A successful and popular software application (often written by a third party), that is generally perceived to be…
killer cellA white blood cell that attacks tumor cells and body cells that have been invaded by foreign substances.
killer T cellT cells that kill cells displaying recognized antigens.
Killer TrunkA trunk that is seized repeatedly, but is not held for an appreciable length of time due to a malfunction.
KilllistA list of domains that are denied access to the mail server.
Kilovolt-Ampere (kVa)A unit of apparent power, equal to 1,000 volt-amperes; the mathematical product of the volts and amperes in an electrical circuit.
KilowattA unit of electrical power equal to 1,000 watts (W).
Kilowatt (kW)A standard unit of electrical power equal to one thousand watts, or to the energy consumption at a rate of 1000 Joules per second.
Kilowatt hour (kWh)A measure of energy equivalent to the expenditure of one kilowatt for one hour. For example, 1 kWh will light a 100-watt light bulb for 10 hours.
Kilowatt-hourA unit or measure of electricity supply or consumption of 1,000 Watts over the period of one hour; equivalent to 3,412 Btu.
Kilowatthour (kWh)A measure of electricity defined as a unit of work or energy, measured as 1 kilowatt (1,000 watts) of power expended for 1 hour.
KinaretA substance that is used to treat rheumatoid arthritis, and is being studied in the treatment of cancer. Kinaret blocks the action of interleukin 1 (IL-1).
kinaseAn enzyme that catalyses the transfer of a phosphate group from a high energy state (as in ATP) to another molecule.
kind codesWIPO Standard ST. 16 codes (kind codes) include a letter, and in many cases a number, used to distinguish the kind of patent document (e.g.
Kinematic BattlespaceThe planned engagement region in space of an interceptor given the sensor timeline, kinematic capabilities of the interceptor, engagement timeline, and…
Kinetic EnergyEnergy available as a result of motion that varies directly in proportion to an object's mass and the square of its velocity.
Kinetic Energy (KE)The energy from the momentum of an object, i.e., an object in motion.
Kinetic Energy Weapon (KEW)A weapon that uses kinetic energy, or energy of motion to kill an object. Examples of weapons, which use kinetic energy, are a rock, a bullet, a…
Kinetic Kill Vehicle (KKV)A weapon using a non-explosive projectile moving at very high speed to destroy a target on impact.
kinetochoreStructure at the centromere of eukaryotic chromosomes. The kinetochore consists of inner and outer electron dense plates and a central zone containing…
kinetosomeGranular cytoplasmic structure which forms the base of a cilium or flagellum. Synonym: basal body.
kininA substance promoting cell division. In plant systems, the prefix cyto- has been added (cytokinin ) to distinguish it from kinin in animal systems.
Klason ligninLignin obtained from wood after the non-lignin components of the wood have been removed with a prescribed sulfuric acid treatment.
Klatskin tumorCancer that develops in cells that line the bile ducts in the liver, where the right and left ducts meet. It is a type of cholangiocarcinoma.
KlebsiellaA bacterium that frequently causes lung, urinary tract, intestinal, and wound infections.
Kleinberg, JonScientist largely responsible for much of the research that went into hubs and authorities based search relevancy algorithms.
Klenow fragmentA truncated form of DNA polymerase I from E. coli, used extensively for the production of synthetic DNA molecules as it retains polymerase and…
KLHOne of a group of drugs called immune modulators, given as a vaccine to help the body respond to cancer. Also called keyhole limpet hemocyanin.
Klinefelter syndrome(KLINE-fel-ter SIN-drome) A genetic disorder in males caused by having one or more extra X chromosomes.
Klinefelter's syndrome(Kline'-fell-terz sin'-drom) a congential (present at birth) condition that affects 1 out of every 850 men.
KlystronAn electron tube used as a low-power oscillator or a high-power amplifier at ultrahigh frequencies.
KmA dissociation constant that characterizes the binding of an enzyme to a substrate.
kneeIn video, by convention, the circuitry introducing white compression into the opto-electronic transfer function and thereby modifying the curve for a more…
Knee Replacements Total or PartialKnee replacement surgery (arthroplasty) is an elective procedure for people with severe knee damage and pain related to osteoarthritis, rheumatoid…
KneewallA wall usually about 3 to 4 feet high located that is placed in the attic of a home, anchored with plates between the attic floor joists and the roof…
knife-edge effectIn electromagnetic wave propagation, a redirection by diffraction of a portion of the incident radiation that strikes a well-defined obstacle such as a…
Knock InReplacement of a gene by a mutant version of the same gene using homologous recombination.
Knock OutInactivation of a gene by homologous recombination following transfection with a suitable DNA construct.
Knock out countAn unbalanced card counting system promoted by Olaf Vancura and Ken Fuchs. 2-7 count as +1 and aces and tens count as -1.
Knock-out mouseA mouse that has had one or both copies of a specific gene deleted or inactivated.
knockoutA mutant individual, in which a single functional gene has been replaced by a non-functional form of the gene.
Knockout SingleTo uncouple the barges from the towboat and lay along side the barge(s) during lockage. Also called a “set over single”.
Knot(abbrev. Kt) Unit of speed used in navigation, equal to 1 nautical mile (the length of 1 minute latitude) per hour or about 1.
knowbotContraction of knowledge robot. A search tool that automatically seeks relevant online information based on the user's previously identified…
Knowledge Consistency Checker (KCC)A built-in service that runs on all domain controllers and automatically establishes connections between individual machines in the same site.
knowledge robotA component of a search engine that collects information from Internet resources. [2832-35] Synonyms droid, infobot, robotic librarian, search robot.
Knowledge-based Expert SystemA computer program that uses knowledge and inference procedures for solving a problem that is sufficiently difficult to require a significant amount of…
KnowledgebaseAn organized repository of knowledge about a particular subject. For example, a set of U.S. patentability rules is a knowledgebase.
Known Geothermal Area (KGA)A region identified by the U.S. Geological Survey as containing geothermal resources.
Known samplebiological material whose identity or type is established. An example of a known sample is a sample contributed by the close biological relative of a…
Known Standarda specimen from an identified source acquired for the purpose of comparison with the evidence.
known-plain-text attack1. An analytical attack in which a cryptanalyst possesses a substantial quantity of corresponding plain text and cipher text. [2382-pt.8] 2.
KnucklesSlang for lumpy protrusions on the edges, and sometimes the underside, of a thunderstorm anvil.
Knutson-Vandenberg Act (KV)Federal law that allows the U.S. Forest Service to collect money from a timber sale for resource enhancement, protection, and improvement work in the…
Kofax BoardThe generic term for a series of image processing boards manufactured by Kofax Imaging Processing.