s.o.s

s.o.s.

(in prescriptions) if necessary.

Origin:
< Latin sī opus sit

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Medical Dictionary

s.o.s. abbr.
Latin si opus sit (if needed)

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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American Heritage
Abbreviations & Acronyms
s.o.s.
Latin si opus sit (if needed)
The American Heritage® Abbreviations Dictionary, Third Edition
Copyright © 2005 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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