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second, sec, s | 1/60 of a minute; the basic unit of time adopted under the Systeme International d'Unites | |
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randomness, entropy, S | [in thermodynamics] a thermodynamic quantity representing the amount of energy in a system that is no longer available for doing mechanical work | |
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S, mho, siemens, reciprocal ohm | a unit of conductance equal to the reciprocal of an ohm | |
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sulfur, S, sulphur, atomic number 16 | an abundant tasteless odorless multivalent nonmetallic element; best known in yellow crystals; occurs in many sulphide and sulphate minerals and even in native form (especially in volcanic regions) | |
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south, S, due south, southward | the cardinal compass point that is at 180 degrees | |
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S, s | the 19th letter of the Roman alphabet |