S interfaceFor basic rate access in an Integrated Services Digital Network (ISDN) environment, a user-to-network interface reference point that (a) is characterized…
S phaseThe phase in the cell cycle during which DNA synthesis occurs.
S reference pointThe conceptual reference point dividing the TEI (terminal endpoint identifier) and the NT2 (network termination 2) in a particular ISDN access arrangement.
S-1A drug that is being studied for its ability to enhance the effectiveness of fluorouracil and prevent gastrointestinal side effects caused by fluorouracil.
S-Band RadarThese were in use as network radars in the National Weather Service prior to the installation of the WSR 88-D radars.
S-boxNon-linear substitution table used in several byte substitution transformations and in the Key Expansion routine to perform a one for one substitution of…
S-phase fractionA measure of the percentage of cells in a tumor that are in the phase of the cell cycle during which DNA is synthesized.
S/MIMEA set of specifications for securing electronic mail. Secure/ Multipurpose Internet Mail Extensions (S/MIME) is based upon the widely used MIME standard…
S/N(1) Signal-to-Noise Ratio (Also called SNR). (2) Serial Number.
S/WShortwave - a disturbance in the mid or upper part of the atmosphere which induces upward motion ahead of it.
S/WVShortwave - a disturbance in the mid or upper part of the atmosphere which induces upward motion ahead of it.
S1 mappingA method to characterise post-transcriptional modifications in RNA (removal of introns etc.
S1 nucleaseAn enzyme obtained from the filamentous fungus Aspergillus oryzae which specifically degrades RNA or single-stranded DNA into its constituent…
S100 calcium binding protein A8(⦠KAL-see-um ⦠PROH-teen â¦) A protein that is made by many different types of cells and is involved in processes that…
S100 calcium binding protein A9(⦠KAL-see-um ⦠PROH-teen â¦) A protein that is made by many different types of cells and is involved in processes that…
SA/BMOBSOLETE. Systems Analysis/Battle Management.
SA/PDLStrategic Defense Ada Process Description Language.
SAAJFor more information, see http://www.apache.org.
SaaS (Software as a Service)refers to specialised companies who provide a very specific stack and support for that stack so as to get rid of the need for any technical headaches, e.g.
SABRSSpace and Atmospheric Burst Reporting System.
SAC(1) OBSOLETE. Strategic Air Command (see USSTRATCOM). (2) Senate Appropriations Committee (US).
Sac fryA life stage of young fish where the food sac has not been completely absorbed.
saccharideA simple sugar or a more complex compound that can be hydrolyzed to simple sugar units.
saccharifactionFollowing liquefaction, the hydrolysis of polysaccharides by glucoamylase to maltose and glucose.
saccharificationA conversion process using acids, bases, or enzymes in which long-chain carbohydrates are broken down into their component fermentable sugars.
Sacred landscapesNatural places recognized by a cultural group as having spiritual or religious significance.
Sacred siteAny specific, discrete, narrowly delineated location on federal land that is identified by an Indian tribe, or Indian individual determined to be an…
Sacrificial AnodeA metal rod placed in a water heater tank to protect the tank from corrosion. Anodes of aluminum, magnesium, or zinc are the more frequently metals.
sacrum(SAY-krum) The large, triangle-shaped bone in the lower spine that forms part of the pelvis. It is made of 5 fused bones of the spine.
SADBUSmall and Disadvantaged Business Utilization (of OSD).
saddleA thin piece of land that extends out (sometimes an extended point) from the shoreline and connects to an island (sometimes underwater), reef or a hump.
Saddle damA subsidiary dam of any type constructed across a saddle or low point on the perimeter of a reservoir. See dike.
SAF-TE (SCSI Accessed Fault-Tolerant Enclosure)An open specification that provides a comprehensive standardized method to monitor and report status information on the condition of disk drives, power…
Safe (or Safety) Deposit BoxA type of safe usually located in groups inside a bank vault and rented to customers for their use in storing valuable items.
Safe Drinking Water Act (SDWA)The Safe Drinking Water Act (SDWA) ensures that our tap water is fit to drink. Passed in 1974, SDWA sets national drinking water standards for public…
Safe Drinking Water Act (SWDA)Act authorizing development of maximum contaminant levels for drinking water applicable to public water systems (i.e.
Safe harborThe ability of management to discuss in good faith a company's prospects and financial projections with analysts and investors without fearing litigation.
safe list collectionThe combined data from an Office Outlook user's Safe Senders List, Safe Recipients List, Blocked Senders List, and external contacts, that is stored in…
Safe Recipients ListA list that includes the e-mail addresses of mailing lists for which you want to be a recipient.
Safe Senders ListA list of domain names and e-mail addresses that you want to receive messages from.
Safe yieldThe amount of groundwater that can be withdrawn from a groundwater basin over a period of time without exceeding the long-term recharge of the basin or…
SAFEGUARDA U.S. midcourse and terminal phase defense for ICBMs, deployed in 1975 and deactivated in 1976 due to its limited cost effectiveness.
safeguarding statement[A] statement affixed to a computer output or printout that states the highest classification being processed at the time the product was produced and…
SafeguardsProtective measures prescribed to meet the security requirements (i.e., confidentiality, integrity, and availability) specified for an information system.
SafekeepingA service provided by banks where securities and valuables are protected in the vaults of the bank for customers.
safelist aggregationA set of anti-spam functionality that is shared across Microsoft Office Outlook and Exchange Server 2007.
Safety & Security Inspectionsthe review or audit of procedures and equipment to ensure the safety and security of laboratory personnel and facilities
Safety DisconnectAn electronic (automatic or manual) switch that disconnects one circuit from another circuit.
Safety Evaluation Earthquake (SEE)The earthquake expressed in terms of magnitude and closest distance from the damsite or in terms of the characteristics of the time history of free-field…
Safety evaluation flood (SEF)The largest flood for which the safety of a dam and appurtenant structure(s) are to be evaluated.
Safety Evaluation of Existing Dams (SEED) reportA compilation of independent technical reports that evaluate the design, construction, and performance of a dam for its structural and hydraulic integrity…
safety serviceAny radiocommunication service used permanently or temporarily for the safeguarding of human life and property. [NTIA] [RR]
Safety shieldAlso called a safety liner. A safety feature often referred to as a "tire within a tire.
SafetyNETInmarsat-C SafetyNET is an internationally adopted, automated satellite system for promulgating weather forecasts and warnings, marine navigational…
Saffir-Simpson Hurricane Wind ScaleThe Saffir-Simpson Hurricane Wind Scale is a 1 to 5 categorization based on the hurricane's intensity at the indicated time.
Saffir-Simpson ScaleThis scale was developed in an effort to estimate the possible damage a hurricane's sustained winds and storm surge could do to a coastal area.
safingol(SA-fin-gol) A substance that is being studied in the treatment of cancer. It belongs to the family of drugs called protein kinase inhibitors.
SAHAA drug that is used to treat cutaneous T-cell lymphoma that does not get better, gets worse, or comes back during or after treatment with other drugs.