s.o.s.

(in prescriptions) if necessary.

Nearby words

s.m.m., s.m.o.m., s.o., s.o.b., s.o.l., s.o.s., s.p., s.p.c.a., s.p.c.c., s.p.f., s.p.q.r.

Origin of s.o.s.

From the Latin word sī opus sit

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Medicine definitions for s.o.s.

s.o.s.

abbr.

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.