SAR may stand for:

• (in pharmacology and computational chemistry) structure-activity relationship
• In plant disease resistance Systemic acquired resistance
• Salanter Akiba Riverdale, a modern Orthodox yeshiva in Riverdale, New York
• Saudi riyal (ISO 4217 currency code SAR)
• Search and rescue
• IPCC Second Assessment Report
• Segmentation and Reassembly of data packets in a computer network
• Singapore Assault Rifle 21
• Son of Ra, a title used by occult societies
• Sons of the American Revolution, a genealogical organization
• South African Republic
• South African Railways
• Special Administrative Region, a type of political subdivision in China
• Specific absorption rate of RF energy by the body from a cellular phone
• Suspicious activity report, filed with the US government by financial institutions
• Service Archive (.sar), a file format for the JBOSS Java application server computer program
• Satellite Access Request
• Synthetic Aperture Radar, an active microwave remote sensing technology
• Special Access Required for the U.S. Government Special Access Program
• Simultaneous Autoregression, used in spatial statistics and geostatistics to model discrete, correlated spatial data.
• Stock Appreciation Right
• Student Aid Report, sent to applicants of US federal financial aid for college
• the sar (System Activity Report(er)) command for UNIX and Linux which reports computer operating system activity. See "sar(1) manual page"
• Syrian Arab Republic

Sar can refer to: Pharmacology (in Greek: pharmacon (φάρμακον) meaning drug, and logos (λόγος) meaning science) is the study of how chemical substances interact with living systems. ... Computational chemistry is a branch of chemistry that uses the results of theoretical chemistry incorporated into efficient computer programs to calculate the structures and properties of molecules and solids, applying these programs to real chemical problems. ... QSAR (quantitative structure-activity relationship, sometimes the A stands also for affinity = reactivity) is the quantitative correlation of the biological (ecological, toxicological or pharmacological) activity to the structure of chemical compounds, which allows the prediction of the so-called drug efficacy of a structurally related compound. ... In plants, the transpiration stream is the uninterrupted stream of water which is taken up by the roots and, via the xylem vessels, transported to the leaves where it will eventually evaporate at the air/apoplast-interface of the substomatal cavity. ... Categories: Stub | Currencies ... Search and Rescue (acronym SAR) is an operation mounted by emergency services, often well-trained volunteers, to find someone believed to be in distress, lost, sick or injured either in a remote or difficult to access area, such as mountains, desert or forest (Wilderness search and rescue), or at sea... The Second Assessment Report (SAR) of the Intergovernmental Panel on Climate Change was published in 1995. ... Segmentation and Reassembly refers to the process used to divide and reformat data so as to allow it to be transported as the 48 byte payload in multiple ATM cells, followed by its reconstitution at the destination of the ATM Permanent virtual circuit through which it has been carried. ... Caliber: 5. ... Son of Ra or SAR (SA for Son and R for Ra or Re) is a title used in occult societies. ... The National Society of the Sons of the American Revolution (SAR) is a fraternal organization dedicated to historic preservation, education and patriotic endeavor. ... Capital Pretoria Created 1857 - Independence 1881 - Boer Rebelion Dissolved 1877 - 1st British Annexation 1900 - Formal Annexation Official language Dutch (Afrikaans more common) This article is about the former country in Africa. ... A Special Administrative Region (SAR) (Simplified Chinese: 特别行政区; Traditional Chinese: 特別行政區; pinyin: tèbié xíngzhèngqū; Cantonese IPA: /tɐk6piːt6 hɐŋ4tsɪŋ3kʰɵy1/; Jyutping: dak6bit6 hang4zing3keoi1; Yale: dahkbiht hàhngjingkeūi) is a political subdivision of the Peoples Republic of China. ... Specific absorption rate (SAR) is a measure of the rate at which radio frequency (RF) energy is absorbed by the body when using a cellular telephone. ... A Suspicious Activity Report (or SAR) is a report regarding suspicious or potentially suspicious financial activity, filed with FinCEN (the FINancial Crimes Enforcement Network), an arm of the United States Department of the Treasury. ... A JBoss definition of a service archive (.sar) file. ... The surface of Venus, as imaged by the Magellan probe using SAR Synthetic aperture radar (SAR) is a form of radar in which sophisticated post-processing of radar data is used to produce a very narrow effective beam. ... Geostatistics applies the theories of stochastic processes and statistical inference to geographic phenomena. ... In probability theory and statistics, correlation, also called correlation coefficient, is a numeric measure of the strength of linear relationship between two random variables. ... Stock Appreciation Right (SAR) is a kind of compensation to employee with ESO (Employee Stock Option). ... Unix or UNIX is a computer operating system originally developed in the 1960s and 1970s by a group of AT&T Bell Labs employees including Ken Thompson, Dennis Ritchie, and Douglas McIlroy. ... Linux (also known as GNU/Linux) is a computer operating system. ... A computer is a machine designed for manipulating data according to a list of instructions known as a program. ...

• Sar (river) in Galicia (Spain)
• Šar mountain in southeastern Europe

There is also a Saar River, which is located in the Franco-German borderlands. Galicia (Spain) - Wikipedia, the free encyclopedia /**/ @import /skins-1. ... The Sharr mountains Albanian Malet e Sharrit, Sharr) Šar mountain (Serbian and Macedonian Шар Планина, Šar Planina; is a mountain located on the southern border of Serbia and Montenegro (in Kosovo) and the northwest part of Republic of Macedonia. ... Saar loop at Mettlach The Saar (French: Sarre) is a river, that rises in the Vosges mountains in Alsace with two headstreams (Red and White Saar) at the Donon, running through Lorraine and the Saarland, which was named after it. ...