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q.s.1

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  1. (in prescriptions) as much as is sufficient; enough.
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Origin of q.s.1

From the Latin word quantum sufficit

q.s.2

  1. quarter section.
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Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

q.s. in Medicine

q.s.

abbr.
  1. quantum satis (as much as is enough)
  2. quantum sufficiat (as much as shall suffice)
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The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.