ExpertGlossary terms starting with S

4,972 terms

SEATO Southeast Asia Treaty Organization.
Seaway Bill This document serves to provide the terms and conditions of carriage and acts as a receipt of goods tendered to the carrier.
sebum (SEE-bum) An oily substance produced by certain glands in the skin.
SECAM Acronym for système electronique couleur avec memoire. A television signal standard (625 lines, 50 Hz, 220 V primary power) used in France, eastern…
SECC Survivable and Enduring Command Center.
Secchi depth A measure of water clarity.
SECDEF Secretary of Defense (For Message Use Only).
SECNAV Secretary of the Navy.
SECNAVINST Secretary of the Navy Instruction.
second (s) In the International System of Units (SI), the time interval equal to 9,192,631,770 periods of the radiation corresponding to the transition between the…
second dialtone Dialtone presented to the call originator after an access code has been dialed for access to a second, outside, telecommunications system or service. 2.
Second Election In an election requiring a plurality vote, if two or more candidates for the same office tie for the number of votes required to be elected, and the tie…
Second foot (sec-ft) Shortened term for cubic foot per second (cfs or ft3/s).
Second growth A second generation of timber of merchantable age.
Second home A residence that is not one's principal (primary) residence; for example, a vacation home. See also "primary residence."
Second Law Efficiency The ratio of the minimum amount of work or energy required to perform a task to the amount actually used.
Second Law of Thermodynamics This law states that no device can completely and continuously transform all of the energy supplied to it into useful energy.
Second Lien Modification Program (2MP) program that provides homeowners a way to modify their second mortgages to make them more affordable when their first mortgage is modified under the HAMP.
Second Mortgage a loan with a second-priority claim against a property in the event that the homeowner defaults.
Second Opinion When a patient seeks the recommendation or differing point of view of a doctor or other clinician other than the one a patient has previously been seeing.
Second Pair A pair with the second highest card on the flop. If you have A ♠-T♠, and the flop comes K♦-T♥-6 ♣, you have flopped second pair. See "top pair."
Second Preference A category of family immigration (F2) for spouses, children and unmarried sons and daughters of lawful permanent residents.
second primary cancer Refers to a new primary cancer in a person with a history of cancer.
Second Strike Capability The ability to survive a first strike with sufficient resources to deliver an affective counterblow (generally associated with nuclear weapons).
second window Of silica-based optical fibers, the transmission window at approximately 1.3 m.
Second-Day Feet The volume of water represented by a flow of one cubic foot per second for 24 hours; equal to 84,000 cubic feet.
second-line therapy (...THAYR-uh-pee) Treatment that is given when initial treatment (first-line therapy) doesn't work, or stops working.
second-look surgery Surgery performed after primary treatment to determine whether tumor cells remain.
Secondary Ambient Air Quality Standards Air quality standards designed to protect human welfare, including the effects on vegetation and fauna, visibility and structures.
secondary antibody In an ELISA or other immunological assay system, the antibody designed to bind to the primary antibody, and to which a label is generally attached.
Secondary authority Legal encyclopedias, treatises, legal texts, law review articles, and citators. Writings which set forth the opinion of the writer as to the law.
secondary cancer A term that is used to describe either a new primary cancer or cancer that has spread from the place in which it started to other parts of the body.
secondary cell wall The innermost layer of cell wall, giving rigidity to the cells. Characterized by its highly organized microfibrillar structure, and only formed in certain…
secondary channel In a system in which two channels share a common interface, a channel that has a lower data signaling rate (DSR) capacity than the primary channel.
Secondary Considerations Objective evidence of non-obviousness. MPEP 2141, MPEP 716.01(a).
Secondary containment A safeguarding method for the prevention of unauthorized releases of toxic or hazardous gases into uncontrolled work areas.
Secondary Diabetes Type of diabetes caused by another disease altogether or damage to the pancreas from chemicals, certain medicines, or diseases of the pancreas (such as…
Secondary displacement Secondary displacement is a prohibition against the placement of an H-1B (excluding H-1B1 or E-3) nonimmigrant with another/secondary employer where there…
Secondary Embankment Embankment that blocks an area on a reservoiur rim that is lower than the top of the main dam. See also, "Levee".
secondary emission Particles or radiation, such as photons, Compton recoil electrons, delta rays, secondary cosmic rays, and secondary electrons, that are produced by the…
Secondary employer Secondary employer is a business where an H-1B worker is sent to work by the employer who is the sponsor of the H-1B visa.
Secondary Façade A facade that does not face a public thoroughfare or mews or court and that does not possess significant architectural features.
secondary frequency standard A frequency standard that does not have inherent accuracy, and therefore must be calibrated against a primary frequency standard.
secondary growth Type of growth characterized by an increase in the thickness of stem and root, and resulting from the formation of secondary s by the vascular cambium.
secondary immune response The rapid immune response that occurs during the second (and subsequent) encounters of the immune system of a mammal with a specific antigen.
Secondary information Research data that was collected by another company or person and usually for a purpose that’s different than the research objectives and tasks at hand.
Secondary market When investors buy and sell securities through a brokerage account, the transactions occur on what's known as the secondary market.
secondary messenger A chemical compound within a cell that is responsible for initiating the response to a signal from a chemical messenger (such as a hormone) that cannot…
secondary metabolism The production by living organisms of substances not essential for primary metabolic functions or physiology.
secondary metabolite Product of secondary metabolism.
secondary mortgage loan A secondary mortgage loan means (A) a loan or an extension of credit, including, but not limited to, an extension of credit pursuant to a contract or an…
Secondary Mortgage Market The market for buying and selling existing mortgages; this could be in the form of whole mortgage or MBS sales.
Secondary offering The most common form of secondary offering occurs when an investor, usually a corporation, but sometimes an individual, sells a large block of stock or…
Secondary oil recovery Injection of water into an oil well after primary oil recovery to force out some of the remaining thicker crude oil.
secondary oocyte See: oocyte.
secondary phloem Phloem tissue formed by the vascular cambium during secondary growth in a vascular plant.
secondary plant product See: secondary metabolite.
Secondary Pollutant Pollutants generated by chemical reactions occurring within the atmosphere. Compare primary pollutant.
Secondary producer An industry that, in addition to producing its primary product, also produces other goods or services.
Secondary product Goods or services produced by an industry other than the primary product of that industry.
secondary radar A radiodetermination system based on the comparison of reference signals with radio signals retransmitted from the position to be determined.
secondary radiation See secondary emission.
secondary root A branch or lateral root.
secondary service area [T]he service area of a broadcast station served by the skywave and not subject to objectionable interference and in which the signal is subject to…
secondary spermatocyte See: spermatocyte.
Secondary Station A station that has been selected to receive a transmission from the primary station.
secondary structure Localized three dimensional conformations adopted by macromolecules, in particular nucleic acids and polypeptides.
secondary subject subdivision of a primary subject in a hierarchal file classification system See also subheading.
Secondary succession The progression of plant communities following disturbances such as fire, windthrow and timber harvesting. See Succession.
secondary surveillance radar Synonym secondary radar.
secondary thickening Deposition of secondary cell wall materials which result in an increase in thickness in stems and roots.
secondary time standard A time standard that requires periodic calibration against a primary time standard.
secondary vascular tissue Vascular tissue (xylem and phloem ) formed by the vascular cambium during secondary growth in a vascular plant.
secondary xylem See: secondary vascular tissue.
secondhand smoke Smoke that comes from the burning of a tobacco product and smoke that is exhaled by smokers.
SECORD Acronym for secure voice cord board. A desk-mounted patch panel that provides the capability for controlling (a) sixteen 50-kb/s wideband or sixteen…
Secret (Symmetric) Key Encryption This is the traditional method used for encryption. The same key is used for both encryption and decryption.
Secret Key A cryptographic key that is used with a secret key (symmetric) cryptographic algorithm, that is uniquely associated with one or more entities and is not…
Secret Key (symmetric) Cryptographic Algorithm A cryptographic algorithm that uses a single secret key for both encryption and decryption.
secret key encryption Any encryption process that (a) depends on only one encryption key, known only to message senders and receivers, and (b) is used to both encode and decode…
Secret Seed A secret value that used to initialize a pseudorandom number generator. The resulting value from the random number generator remains secret or private.
secretaries, party The Secretary for the Majority and the Secretary for the Minority are elected to serve as scheduling and information coordinators between the party floor…
Secretary Secretary means the Secretary of Labor or the Secretary's designee.
secretary of the Senate The chief legislative officer nominated by the majority party conference and elected by the Senate.
secretion The transport of a molecule from the inside of a cell through the cell membrane.
SECTEL Acronym for secure telephone. See STU.
section An area equal to 640 acres or 1 square mile.
Section (Sector) Shooter A dealer who tries to hit certain numbers or sections on the wheel.
Section 15 Declaration of Incontestability a sworn statement, filed by the owner of a mark registered on the Principal Register, claiming "incontestable" rights in the mark for the goods/services…
Section 213A A section of the Immigration and Nationality Act (INA) which establishes that sponsors have a legal duty to support immigrants they want to bring…
Section 340B Drug Discount Program A program administered by the HRSA's Bureau of Primary Care, Office of Pharmacy Affairs established by Section 340B of the Veteran's Health Care Act of…
Section 8 Declaration of Continued Use a sworn statement, filed by the owner of a registration that the mark is in use in commerce. Section 8 of the Trademark Act, 15 U.S.C. §1058.
Section 8 Declaration of Excusable Nonuse a sworn statement, filed by the owner of a registration, that the mark is not in use in commerce due to special circumstances that excuse such nonuse and…
Section 9 Renewal Application a sworn document, filed by the owner of a registration, to avoid the expiration of a registration.
section boundary The boundary that separates a network section from the adjacent circuit section, or separates an access circuit section from the adjacent DTE (data…
Section Drawing A drawing representing a vertical plane cut through the structure
Section Evidence Area a secured room or cabinet for temporary storage of evidence by analysts.
section line A line on a surface defining the position of a profile.
Section Shooting The act of placing the ball in a given section of the wheel.
Section Slicing Dividing the wheel into sections based upon which numbers have been hitting for the purpose of discovering biases.