Collins Concise English Dictionary © HarperCollins Publishers::
Q factor
  1. a measure of the relationship between stored energy and rate of energy dissipation in certain electrical components, devices, etc, thus indicating their efficiency
  2. Also called: Q value the heat released in a nuclear reaction, usually expressed in millions of electronvolts for each individual reaction
    Symbol: Q
Etymology: 20th Century: short for quality factor
WordReference Random House Unabridged Dictionary of American English © 2026
Q-fac•tor  (kyo̅o̅′fak′tər),USA pronunciation n. 
  1. ElectronicsQ (def. 6).
  • 1960–65

'Q factor' also found in these entries (note: many are not synonyms or translations):
Q, q - Q-factor

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