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kerma

/ˈkɜːmə/
noun
1.
(physics) the quotient of the sum of the initial kinetic energies of all the charged particles liberated by indirectly ionizing radiation in a volume element of a material divided by the mass of the volume element. The SI unit is the gray
Word Origin
C20: k(inetic) e(nergy) r(eleased per unit) ma(ss)
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
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Examples for kerma
  • The kingdom of kerma arose as the first kingdom to unify much of the region.

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