Definition of "QR"

QR

noun
countable and uncountable, plural QRs
1. (marketing, retail, logistics, manufacturing) Initialism of quick response.
  1. Ellipsis of QR code.
2. (medicine) Initialism of quiet room.
  Quotations
  1. Patient will remain in the open quiet room (QR) with 6 possible 30-minute "out-times" per day. 2. Patient may have reading materials, writing materials, and one craft at a time in the QR.
  2013, Steven Wiley Emmett, Theory and Treatment of Anorexia Nervosa and Bulimia
3. (pressure cooking) Initialism of Quick Release.