S (disambiguation)

S is the nineteenth letter of the English alphabet.

S may also refer to:

• <s>, the deprecated HTML element "start tag" for strike-through text, like this
• Shilling (British coin)
• S band, a band of radio which ranges from 2 to 4 GHz
• S-block 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, now performs under.
• S (group), a short-lived South Korean music group, active in 2003
• S postcode area, a postcode area including Sheffield, England
• S (programming language), a statistical programming language
• Long s, a mathematical term for the integral sign
• "S", the nickname for Solomon Shereshevskii (1886-1958), Russian journalist known for an exceptional memory
• South on a map, one of the 4 cardinal directions
• s, son
• A party label for the Swedish Social Democratic Party

Science

• S, the chemical symbol for the element Sulfur on the periodic table
• S, the symbol for entropy
• s, the SI symbol for second
• s, one of the Mandelstam variables, the square of the invariant mass
• S, a non-SI unit used to designate molecule size named after the Svedberg sedimentation coefficient
• S, a label that denotes one of two chiral center configurations in the R/S system
• Serine, a standard amino acid abbreviation
• ATC code S Sensory organs, a section of the Anatomical Therapeutic Chemical Classification System
• Siemens (unit), the SI derived unit of electric conductance
• S phase or synthesis phase, a period in the cell cycle during interphase

See also

• S class (disambiguation)
• All pages beginning with "S"
• All pages with titles containing "S"
• Prefix disambiguation: SA, SB, SC, SD, SE, SF, SG, SH, SI, SJ, SK, SL, SM, SN, SO, SP, SQ, SR, SS, ST, SU, SV, SW, SX, SY, SZ