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rms

or r.m.s

1.
(often initial capital letter) root mean square.

rm.

plural rms.
1.
ream.
2.
room.

R.M.S.

1.
Railway Mail Service.
2.
British. Royal Mail Service.
3.
British. Royal Mail Steamship.
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2017.
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British Dictionary definitions for rms

rms

abbreviation
1.
root mean square

RMS

abbreviation
1.
Royal Mail Service
2.
Royal Mail Steamer
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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