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Noun: s  es
  1. 1/60 of a minute; the basic unit of time adopted under the Système International d'Unités
    - second, sec
  2. The 19th letter of the Roman alphabet
    - S, es, ess
Noun: S  es
  1. The cardinal compass point that is at 180 degrees
    - south, due south, southward
  2. (thermodynamics) a thermodynamic quantity representing the amount of energy in a system that is no longer available for doing mechanical work
    "S increases as matter and energy in the universe degrade to an ultimate state of inert uniformity";
    - randomness, entropy
  3. A unit of conductance equal to the reciprocal of an ohm
    - mho, siemens, reciprocal ohm
  4. An abundant tasteless odourless multivalent nonmetallic element; best known in yellow crystals; occurs in many sulphide and sulphate minerals and even in native form (especially in volcanic regions)
    - sulfur [N. Amer], sulphur [Brit, Cdn], atomic number 16

Derived forms: ss, Ss

Type of: alphabetic character, cardinal compass point, chemical element, conductance unit, element, letter, letter of the alphabet, physical property, time unit, unit of time

Part of: Latin alphabet, min, minute, oil of vitriol, Roman alphabet, sulfide [N. Amer], sulfuric acid [N. Amer], sulphide [Brit, Cdn], sulphuric acid [Brit, Cdn], vitriol

Encyclopedia: S,S-Hydroxybupropion