S
— Noun
– English
~ (thermodynamics) a thermodynamic quantity representing the amount of energy in a system that is no longer available for doing mechanical work; "entropy increases as matter and energy in the universe degrade to an ultimate state of inert uniformity"
S
— Noun
– English
~ a unit of conductance equal to the reciprocal of an ohm
S
— Noun
– English
~ the cardinal compass point that is at 180 degrees
S
— Noun
– English
~ the 19th letter of the Roman alphabet