sella turcicaA depression of the bone at the base of the skull where the pituitary gland is located.
SellerFor purposes of the list maintenance requirement, a seller is: Any organizer, underwriter, broker, or dealer (or other similar person) who transfers any…
Seller Take BackAn agreement in which the seller of a property provides financing to the buyer for the home purchase. See also "Owner Financing"
Semantic analysisThis means applying a combination of general and specific thesauri and ontologies, and automatic phrasing,ÃÂ -forÃÂ example, to understand the…
semantic errorAn error in the meaning of program. A statement may have no syntax errors, but might still break the rules of the Java language.
Semantic indexingSemantic indexing of content by detection and annotation of sentences, paragraphs and other semantic structures in unstructured content.
Semantic WebExtension of the World Wide Web in which the semantics of information and services on the web is defined, making it possible for the web to understand and…
semaphoreA fancy kind of interlock that prevents multiple threads or processes from using up the same resources simultaneously.
semaxanib(seh-MAX-uh-nib) A substance that has been studied in the treatment of cancer. It belongs to the families of drugs called angiogenesis inhibitors and…
semenThe fluid that is released through the penis during orgasm. Semen is made up of sperm from the testicles and fluid from the prostate and other sex glands.
Semi-Active Homing GuidanceA system of homing guidance wherein the receiver in a missile utilizes radiations from a target, which has been illuminated by an outside source.
Semi-Active SensorOne that does not generate radiation itself, but that detects radiation reflected by targets when they are illuminated by other BMD components.
Semi-aridModerately dry region or climate where moisture is normally greater than under arid conditions but still definitely limits the production of vegetation.
Semi-BluffA powerful concept first discussed by David Sklansky. It is a bet or raise that you hope will not be called, but you have some outs if it is.
semi-conservative replicationDuring DNA duplication, each strand of a parent DNA molecule acts as a template for the synthesis of a new complementary strand.
semi-continuous cultureCells in an actively dividing state which are maintained in culture by periodically draining off the medium and replenishing it with fresh medium.
Semi-detachedA building attached to a similar one on one side but unattached on the other.
semi-permanent connectionA connection established via a service order or via network management. [T1.627-1993]
semi-permeable membraneA natural or synthetic material which selectively allows the passage of certain ions or molecules.
semi-sterilityThe condition of partial fertility. Often associated with chromosomal aberrations or the result of mutagenesis.
semiactive recordA record that is infrequently referred to but is still needed for reference See also active record and inactive record.
semiautomatic switching systemIn telephone systems, a switching system in which telephone operators receive call instructions orally from users and complete them by automatic equipment.
SemiconductorAny material that has a limited capacity for conducting an electric current. Certain semiconductors, including silicon, gallium arsenide, copper indium…
Semiconservative replicationDuring DNA duplication, each strand of a parent DNA molecule is a template for the synthesis of its new complementary strand.
semiduplex operationA method which is simplex operation at one end of the circuit and duplex operation at the other.
Seminalpertaining to or containing or consisting of semen; "seminal fluid".
seminal fluid(SEM-in-al) Fluid from the prostate and other sex glands that helps transport sperm out of the man's body during orgasm.
seminal vesicle(SEM-in-al VES-ih-kul) A gland that helps produce semen.
seminal vesicle biopsyThe removal of fluid or tissue with a needle from the seminal vesicles for examination under a microscope.
seminoma(sem-in-O-ma) A type of cancer of the testicles. Seminomas may spread to the lung, bone, liver, or brain.
semiparasiticIn botany, a plant that gets food from a host but also contains chlorophyll and is capable of photosynthesis.
Semipermanent anticycloneSemipermanent anticyclone (high) High pressure area largely predominate during a major portion of the year where an anticyclone appears on the mean…
semustineAn anticancer drug that belongs to the family of drugs called alkylating agents.
Senate ManualA document that contains the Senate's standing rules and orders and other laws and regulations that apply to the Senate.
senatorThe Constitution requires that a Senator be at least 30 years old, a citizen of the United States for at least nine years, and an inhabitant of the State…
Send connectorA connector used to send mail to remote mail systems based on administrator-defined address spaces.
senderA device that accepts address information from a register or routing information from a translator, and then transmits the proper routing information to a…
Sender IDA Microsoft-controlled version of SPF. An email authentication and anti-spoofing system. For more information about Sender ID, go to http://wikipedia.
sender reputationAnti-spam functionality that is enabled on computers that have the Edge Transport server role installed to block messages according to characteristics of…
Sending DistrictAn overlay zoning district established by the Town Meeting/Town Council upon recommendation from the Planning Board as an area in which use or development…
sending loudness rating (SLR)The ratio in dB of the sound pressure produced by a speaker to the voltage produced by a telephone and loop as defined by ITU-T Recommendation P.79. [T1.
sending-end crossfireIn teletypewriter (TTY) systems, interference, in a given channel, caused by transmissions from one or more adjacent TTY channels transmitting from the…
Sendout(Natural Gas) Volume of natural gas that is re-gasified and delivered into the downstream natural gas grid from an LNG terminal.
senega rootThe root of an herb called Polygala senega. It has been used in some cultures to treat certain medical problems, including problems of the respiratory…
senescenceA late stage in the development of multicellular organisms, during which irreversible loss of function and degradation of biological components occur.
senile keratosis(SEE-nile KAYR-uh-TOH-sis) A precancerous condition of thick, scaly patches of skin. Also called actinic keratosis and solar keratosis.
Senior Agency Information Security OfficerOfficial responsible for carrying out the Chief Information Officer responsibilities under the Federal Information Security Management Act (FISMA) and…
Senior bondSenior bonds offer slightly lower interest rates than subordinated or junior bonds because they are considered less risky.
Senior Legal Counsel (SLC)A term referring to senior ethics officials in a command, organization, or agency.
Senior Preferred Stock Purchase Agreement (PSPA)Entered into at the time the conservatorships were created, the PSPAs authorize the Enterprises to request and obtain funds from Treasury, which in turn…
Senior Procurement Executive (SPE)The senior official responsible for management direction of the Service procurement system, including implementation of unique procurement policies…
Senior water rightsWater rights that have been established first (measured by the date of appropriation) to the limit of their respective right, frequently to the exclusion…
seniorityThe status given Senators according to their length of service, which entitles a Senator with greater seniority to preferential treatment in matters such…
sense RNAThe RNA transcript of the coding strand DNA (often represented as the (+)-strand). Opposite: antisense RNA.
Sensible Cooling EffectThe difference between the total cooling effect and the dehumidifying effect.
Sensible Cooling LoadThe interior heat gain due to heat conduction, convection, and radiation from the exterior into the interior, and from occupants and appliances.
Sensible HeatThe heat absorbed or released when a substance undergoes a change in temperature.
Sensible Heat FluxThe flux of heat from the earth's surface to the atmosphere that is not associated with phase changes of water; a component of the surface energy budget.
Sensible Heat StorageA heat storage system that uses a heat storage medium, and where the additional or removal of heat results in a change in temperature.
sensitive information1. Information, the loss, misuse, or unauthorized access to or modification of, which could adversely affect the national interest or the conduct of…
SensitivityWhen referring to a medical test, sensitivity refers to the percentage of people who test positive for a specific disease among a group of people who have…
sensitivity label1. Information representing elements of the security label(s) of a subject and an object.
Sensitivity level (analysis)Measures (e.g., high, medium, and low) of public concern for the maintenance of scenic quality.
Sensitivity LevelsA graduated system of marking (e.g., low, moderate, high) information and information processing systems based on threats and risks that result if a…
sensorA device that responds to a stimulus, such as heat, light, or pressure, and generates a signal that can be measured or interpreted.
Sensor AgingThe gradual degradation in performance of a sensor over time.
Sensor DataMeasurement information. For a passive sensor it is usually irradiance time, and LOS.
Sensorcaine(SEN-sor-kane) A drug used to relieve pain by blocking signals at nerve endings. It is being studied in the relief of pain following surgery for cancer.
Sentencia concurrenteCuando una orden judicial permite que dos o más sentencias se cumplan simultáneamente en vez de consecutivamente.
Sentencia, falloDecisión final de un tribunal que resuelve el asunto disputado.
sentencing guidelinesA set of rules and principles established by the United States Sentencing Commission that trial judges use to determine the sentence for a convicted…
Sentencing hearingA court hearing at which the defendant is sentenced. At the hearing, the court considers the attorneys' comments on the probation officer's…
Sentencing rangeOne of the goals of guidelines sentencing is to ensure that similar offenders who commit similar crimes are given similar sentences.
Sentencing Reform Act of 1984A statute passed by Congress which establishes the U.S. Sentencing Commission and gives the Commission authority to issue sentencing guidelines for use in…
Sentiment analysisThe evaluation of the sentiment - typically positive or negative - of the text based on the usage of language.
SentinelABM system designed for light area defense against a low-level ballistic missile attack on the United States.
Sentinel Lymph NodeThe first lymph node to which cancer is likely to spread from the primary tumor.
sentinel lymph node biopsyRemoval and examination of the sentinel node(s) (the first lymph node(s) to which cancer cells are likely to spread from a primary tumor).
sentinel lymph node mappingThe use of dyes and radioactive substances to identify the first lymph node to which cancer is likely to spread from the primary tumor.