RSS is a three-letter abbreviation that can stand for a wide variety of terms. This article describes three-letter acronyms. ...

Mathematics

• Root-sum-square, the square root of the sum of the squares of the elements of a data set. To perform this operation, which is called "taking the RSS": square each of the elements, add up the results, and take the square root of the total. Used colloquially to refer to the magnitude of a vector. Compare this to root mean square.

In mathematics, a square root of a number x is a number r such that , or in words, a number r whose square (the result of multiplying the number by itself) is x. ... Addition is one of the basic operations of arithmetic. ... In algebra, the square of a number is that number multiplied by itself. ... In mathematics, an element (also called a member) is an object contained in a set (or more generally a class). ... A data set (or dataset) is a collection of data, usually presented in tabular form. ... The magnitude of a mathematical object is its size: a property by which it can be larger or smaller than other objects of the same kind; in technical terms, an ordering of the class of objects to which it belongs. ... A vector going from A to B. In physics and in vector calculus, a spatial vector, or simply vector, is a concept characterized by a magnitude and a direction. ... In mathematics, the root mean square or rms is a statistical measure of the magnitude of a varying quantity. ...

Technology

• Range Safety System, used in the Space Shuttle Solid Rocket Booster and other systems
• Reduced Space Symbology, the former name of GS1 DataBar, an approved barcode of GS1
• Road Sensing Suspension, a part of the Northstar System brand of General Motors automotive technology
• Roland Sound Space by Roland Corporation
• Rotating Service Structure, used in the Space Shuttle program launches
• Robotics Science and Systems Conference. http://www.robotics-conference.org/
• RSS (file format), Really Simple Syndication, Rich Site Summary or RDF Site Summary, several similar forms of web syndication used by news websites and weblogs
• Radio Service Software, a proprietary suite of programs sold by Motorola
• Relay Spam Stopper, a Spam Blacklist run by Mail-abuse.org[1], operated by MAPS (owned by Trend Micro)
• Resident Set Size or Resident Segment Size, a measurement of RAM usage; represents actual physical RAM being used
• Random Shutdown Syndrome, a phenomenon affecting MacBook notebooks which overheat and shut down without warning
• Received Signal Strength, RF terminology for ratio of transmitted signal power to received signal power.

The Space Shuttle Solid Rocket Booster (SRB) is the rocket that provides 83% of liftoff thrust for the Space Shuttle. ... GS1 DataBar [formerly Reduced Space Symbology (RSS)] is a family of linear symbols that includes GS1 DataBar, GS1 DataBar Limited, and GS1 DataBar Expanded. ... GS1 is a global organization dedicated to the design and implementation of global standards and solutions to improve the efficiency and visibility of supply and demand chains globally and across multiple sectors. ... The Northstar System was Cadillacs trademarked name for a package of automobile performance features. ... Roland Corporation ) TYO: 7944 is a Japanese manufacturer of electronic musical instruments, electronic equipment and software. ... NASAs Space Shuttle, officially called Space Transportation System (STS), is the United States governments current manned launch vehicle. ... For other meanings of RSS, see RSS (disambiguation). ... Radio Service Software (RSS) is a software package used to program commercial Motorola two-way radios. ...

Science

• Recombination signal sequences, in immunological genetics, direct somatic recombination of gene segments
• Residual sum of squares, in regression models

In statistics, the residual sum of squares (RSS) is the sum of squares of residuals. ...

Medicine

• Repetitive strain injury, also Repetitive stress syndrome, an overuse syndrome
• Russell-Silver syndrome

A repetitive strain injury (RSI), also called repetitive stress injury, cumulative trauma disorder or occupational overuse syndrome, is any of a loose group of conditions from overuse of the computer, guitar, knife or similar motion or tool. ... Silver-Russell dwarfism, also called Silver-Russell syndrome (SRS) or Russell-Silver syndrome (RSS) is a growth disorder occurring in approximately 1/75000 births. ...

Society

• Rashtriya Swayamsevak Sangh, a right wing nationalist organization in India.
• Recruiting Sub-Station, a satellite office of a main military recruiting station.
• Regional Spatial Strategy provides a regional level planning framework for the regions of England
• Regional Security System, an agreement between several countries situated in the Eastern Caribbean region. The RSS acts as a unit made up of a series of defence and disaster management forces.
• Religious and Social Studies, a subject offered in many secondary schools in the United Kingdom
• Royal Statistical Society, the main professional body for statisticians in the UK
• Rural Sociological Society

• Rochester Subway, which had the AAR reporting mark, RSS
• Rockdale, Sandow and Southern Railroad, which currently has the AAR reporting mark RSS

The Rashtriya Swayamsevak Sangh (Hindi: , English: ), also known as the Sangh or the RSS, is a Hindu nationalist organization in India. ... Regional Spatial Strategies (RSS) provide a regional level planning framework for the regions of England. ... The Regional Security System (RSS) for the Eastern Caribbean region is an agreement for defence and security. ... “West Indian” redirects here. ... Security measures taken to protect the Houses of Parliament in London, England. ... The Royal Statistical Society is a learned society for statistics and a professional body for statisticians in the UK. Founded in 1834 as the Statistical Society of London, it became the Royal Statistical Society in 1887. ... The city of Rochester New York once had an underground rapid transit system, called the Rochester Subway. ... The Rockdale, Sandow and Southern Railroad (AAR reporting mark RSS) is a Class III railroad operating in the United States state of Texas. ...

Media

• Rastriya Samachar Samiti, the national news agency of Nepal.

School

• Red Swastika School, Singapore
• Riverside Secondary School, Windsor, Ontario, Canada

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