S (disambiguation)
Encyclopedia
S
S
S is the nineteenth letter in the ISO basic Latin alphabet.-History: Semitic Šîn represented a voiceless postalveolar fricative . Greek did not have this sound, so the Greek sigma came to represent...

is the nineteenth letter of the English alphabet.

S may also refer to:
  • <s>
    HTML element
    An HTML element is an individual component of an HTML document. HTML documents are composed of a tree of HTML elements and other nodes, such as text nodes. Each element can have attributes specified. Elements can also have content, including other elements and text. HTML elements represent...

    , the deprecated HTML element "start tag" for strike-through text, like this
  • Shilling (British coin)
  • S band
    S band
    The S band is defined by an IEEE standard for radio waves with frequencies that range from 2 to 4 GHz, crossing the conventional boundary between UHF and SHF at 3.0 GHz. It is part of the microwave band of the electromagnetic spectrum...

    , a band of radio which ranges from 2 to 4 GHz
  • S-block
    S-block
    The s-block of the periodic table of elements consists of the first two groups: the alkali metals and alkaline earth metals, plus hydrogen and helium.Except in hydrogen and helium, these electrons are very easily lost to form positive ions...

     of the periodic table, which includes alkali metals, alkaline earth metals, and hydrogen and helium
  • S combinator in combinatory logic
  • S (band), the name that Jenn Ghetto, formerly of Carissa's Wierd
    Carissa's Wierd
    Carissa's Wierd was an indie rock band from Seattle that formed in 1995 and disbanded in late 2003. Their sound has been described as "chamber rock". The band deliberately misspelled the word "Weird" in their name...

    , now performs under.
  • S (group)
    S (group)
    S was a South Korean project group consisting of three members: Kangta, Lee Ji Hoon and Shin Hye Sung. The group was active only in 2003, under the SM Entertainment label.-History:...

    , a short-lived South Korean music group, active in 2003
  • S postcode area
    S postcode area
    The S postcode area, also known as the Sheffield postcode area, is a group of postcode districts around Barnsley, Chesterfield, Dronfield, Hope Valley, Mexborough, Rotherham, Sheffield and Worksop in England....

    , a postcode area including Sheffield, England
  • S (programming language), a statistical programming language
  • Long s
    Long s
    The long, medial or descending s is a form of the minuscule letter s formerly used where s occurred in the middle or at the beginning of a word, for example "ſinfulneſs" . The modern letterform was called the terminal, round, or short s.-History:The long s is derived from the old Roman cursive...

    , a mathematical term for the integral sign
  • "S", the nickname for Solomon Shereshevskii
    Solomon Shereshevskii
    Solomon Veniaminovich Shereshevsky , also known simply as 'Ш' or 'S.', was a Russian journalist and mnemonist active in the 1920s.-Studies:...

     (1886-1958), Russian journalist known for an exceptional memory
  • South
    South
    South is a noun, adjective, or adverb indicating direction or geography.South is one of the four cardinal directions or compass points. It is the opposite of north and is perpendicular to east and west.By convention, the bottom side of a map is south....

     on a map, one of the 4 cardinal directions
  • s, son
    Son
    A son is a male offspring; a boy or man in relation to his parents. The female analogue is a daughter.-Social issues regarding sons:In pre-industrial societies and some current countries with agriculture-based economies, a higher value was, and still is, assigned to sons rather than daughters,...

  • A party label for the Swedish Social Democratic Party
    Swedish Social Democratic Party
    The Swedish Social Democratic Workers' Party, , contesting elections as 'the Workers' Party – the Social Democrats' , or sometimes referred to just as 'the Social Democrats' and most commonly as Sossarna ; is the oldest and largest political party in Sweden. The party was founded in 1889...


Science

  • S, the chemical symbol for the element Sulfur
    Sulfur
    Sulfur or sulphur is the chemical element with atomic number 16. In the periodic table it is represented by the symbol S. It is an abundant, multivalent non-metal. Under normal conditions, sulfur atoms form cyclic octatomic molecules with chemical formula S8. Elemental sulfur is a bright yellow...

     on the periodic table
  • S, the symbol for entropy
    Entropy
    Entropy is a thermodynamic property that can be used to determine the energy available for useful work in a thermodynamic process, such as in energy conversion devices, engines, or machines. Such devices can only be driven by convertible energy, and have a theoretical maximum efficiency when...

  • s, the SI symbol for second
    Second
    The second is a unit of measurement of time, and is the International System of Units base unit of time. It may be measured using a clock....

  • s, one of the Mandelstam variables
    Mandelstam variables
    In theoretical physics, the Mandelstam variables are numerical quantities that encode the energy, momentum, and angles of particles in a scattering process in a Lorentz-invariant fashion...

    , the square of the invariant mass
    Invariant mass
    The invariant mass, rest mass, intrinsic mass, proper mass or just mass is a characteristic of the total energy and momentum of an object or a system of objects that is the same in all frames of reference related by Lorentz transformations...

  • S, a non-SI unit used to designate molecule size named after the Svedberg
    Svedberg
    A svedberg is a non-SI physical unit used for sedimentation coefficients.  It characterizes the behaviour of a particle type in sedimentation processes, notably centrifugation.  The svedberg is technically a measure of time, and is defined as exactly 10-13 seconds A svedberg (symbol S, sometimes...

     sedimentation coefficient
  • S, a label that denotes one of two chiral center configurations in the R/S system
  • Serine
    Serine
    Serine is an amino acid with the formula HO2CCHCH2OH. It is one of the proteinogenic amino acids. By virtue of the hydroxyl group, serine is classified as a polar amino acid.-Occurrence and biosynthesis:...

    , a standard amino acid abbreviation
  • ATC code S Sensory organs, a section of the Anatomical Therapeutic Chemical Classification System
  • Siemens (unit)
    Siemens (unit)
    The siemens is the SI derived unit of electric conductance and electric admittance. Conductance and admittance are the reciprocals of resistance and impedance respectively, hence one siemens is equal to the reciprocal of one ohm, and is sometimes referred to as the mho. In English, the term...

    , the SI derived unit of electric conductance
  • S phase
    S phase
    S-phase is the part of the cell cycle in which DNA is replicated, occurring between G1 phase and G2 phase. Precise and accurate DNA replication is necessary to prevent genetic abnormalities which often lead to cell death or disease. Due to the importance, the regulatory pathways that govern this...

    or synthesis phase, a period in the cell cycle during interphase
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