NSNimbostratus- A cloud of the class characterized by a formless layer that is almost uniformly dark gray; a rain cloud of the layer type, of low altitude…
NSAIDA drug that decreases fever, swelling, pain, and redness. Also called nonsteroidal anti-inflammatory drug.
NSC(1) National Security Council. (2) National Security Center.
NSC 655649A substance that is being studied in the treatment of cancer. It belongs to the families of drugs called antitumor antibiotics and topoisomerase…
NSCIDNational Security Council Intelligence Directive.
NSEERSEffective April 28, 2011, the Department of Homeland Security (DHS) no longer requires registration of foreign citizens entering and exiting the United…
NSPI (Name Service Provider Interface)Part of the DSProxy process that can accept Outlook client directory requests and pass them to an address book provider. [Exchange 2000]
NSSLNational Severe Storms Laboratory - this is one of NOAA's internationally known Environmental Research Laboratories, leading the way in investigations of…
NSTACNational Security Telecommunications and Information System Security Committee.
NSTCNational Science and Technology Council (EOP term).
NTCNational Training Center, located at Ft. Irwin, CA. A large maneuver area that serves as the Armys primary training center for Army maneuver forces.
NTF (Notes Template File)The file extension for a Notes template file. A template file contains the structure for the application -- that is, forms, folders, and views -- but does…
NTFSNT File System. The Windows NT hierarchical file system.
NTFS File SystemDesigned exclusively for use with the Windows NT and later operating systems. NTFS allows for stronger security and more flexible file management methods…
NTFS permissionsThe permissions used in NTFS-style security to control access to files and directories.
NTISSCNational Telecommunications and Information Systems Security Committee.
NTISSPNational Security Telecommunications and Information Systems Security Publication.
NTLMNT LAN Manager. A Windows NT authentication protocol; supported by NetCache.
NTLM credentialA message containing a challenge and response, sent from the browser to NetCache or from NetCache to a domain controller, for the purpose of…
NTSC standardAbbreviation for National Television Standards Committee standard. The North American standard (525-line interlaced raster-scanned video) for the…
NTWOBSOLETE. Navy Theater-Wide. Now referred to as the Sea-Based Midcourse Segment of BMDS.
NTWD(S)OBSOLETE. Navy Theater-Wide Defense (System).
nucellar embryoAn embryo which has developed vegetatively from somatic tissue surrounding the embryo sac, rather than by fertilization of the egg cell.
nucellusTissue forming the major part of the young ovule in which the embryo sac develops; Also known as megasporangium.
Nuclear electric powerElectricity generated by an electric power plant whose turbines are driven by steam generated in a reactor by heat from the fissioning of nuclear fuel.
Nuclear EnergyEnergy that comes from splitting atoms of radioactive materials, such as uranium, and which produces radioactive wastes.
Nuclear EnvironmentThe environment, which results from the detonation of nuclear weapons. Some components of this environment are directly emitted by the nuclear weapon and…
nuclear gradeAn evaluation of the size and shape of the nucleus in tumor cells and the percentage of tumor cells that are in the process of dividing or growing.
Nuclear HardnessA quantitative description of the resistance of a system or component to malfunction (temporary and permanent) and/or degraded performance induced by a…
nuclear magnetic resonance imaging(NOO-klee-er mag-NEH-tik REH-zuh-nunts IH-muh-jing) A procedure in which radio waves and a powerful magnet linked to a computer are used to create…
nuclear medicine scan(NOO-klee-er MEH-dih-sin SKAN) A method of diagnostic imaging that uses very small amounts of radioactive material.
Nuclear RadiationParticulate and electromagnetic radiation emitted from atomic nuclei in various nuclear processes.
Nuclear reactorA device in which a fission chain reaction can be initiated, maintained, and controlled.
Nuclear reprogrammingRestoration of the correct embryonic pattern of gene expression in a nucleus derived from a somatic cell and introduced into an oocyte.
Nuclear transferA technology by which novel animals are generated by cloning a single diploid somatic cell.
Nuclear transfer (NT)The generation of a new animal nearly identical to another one by injection of the nucleus from a cell of the donor animal into an enucleated oocyte of…
Nucleic acidsThe two nucleic acids, deoxyribonucleic acid (DNA) and ribonucleic acid (RNA), are made up of long chains of molecules called nucleotides.