s

Noun
  1. 1/60 of a minute;
    The basic unit of time adopted under the Systeme International d'Unites (synset 115259923)
    is a type of: time unit, unit of time - a unit for measuring time periods
    subtypes: leap second - a second (as measured by an atomic clock) added to or subtracted from Greenwich Mean Time in order to compensate for slowing in the Earth's rotation
    has: millisecond, msec - one thousandth (10^-3) of a second
    is a part of: min, minute - a unit of time equal to 60 seconds or 1/60th of an hour
    same as: sec, second
  2. 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) (synset 114680398)
    is a type of: chemical element, element - any of the more than 100 known substances (of which 92 occur naturally) that cannot be separated into simpler substances and that singly or in combination constitute all matter
    subtypes: brimstone, native sulfur, native sulphur - an old name for sulfur
    substance meronym:
    same as: atomic number 16, sulfur, sulphur
  3. The cardinal compass point that is at 180 degrees (synset 113855574)
    is a type of: cardinal compass point - one of the four main compass points
    same as: due south, south, southward
  4. A unit of conductance equal to the reciprocal of an ohm (synset 113658719)
    is a type of: conductance unit - a measure of a material's ability to conduct an electrical charge
    same as: mho, reciprocal ohm, siemens
  5. The 19th letter of the Roman alphabet (synset 106846162)
    is a type of: alphabetic character, letter, letter of the alphabet - the conventional characters of the alphabet used to represent speech
    belongs to: latin alphabet, roman alphabet - the alphabet evolved by the ancient Romans which serves for writing most of the languages of western Europe
  6. (thermodynamics) a thermodynamic quantity representing the amount of energy in a system that is no longer available for doing mechanical work (synset 105019769)
    "entropy increases as matter and energy in the universe degrade to an ultimate state of inert uniformity"
    referred to in: thermodynamics - the branch of physics concerned with the conversion of different forms of energy
    is a type of: physical property - any property used to characterize matter and energy and their interactions
    subtypes: conformational entropy - entropy calculated from the probability that a state could be reached by chance alone
    same as: entropy, randomness

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