registered trademark


the 18th in order or in a series, or, when I is omitted, the 17th.
(sometimes lowercase) the medieval Roman numeral for 80. Compare Roman numerals.
Biochemistry, arginine.
registered trademark: written as superscript ® following a name registered with the U.S. Patent and Trademark Office. Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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World English Dictionary
r or R (ɑː)
n , pl r's, R's, Rs
1.  the 18th letter and 14th consonant of the modern English alphabet
2.  a speech sound represented by this letter, in English usually an alveolar semivowel, as in red
3.  See three Rs
R or R

symbol for
1.  chem radical
2.  currency
 a.  rand
 b.  rupee
3.  Réaumur temperature (scale)
4.  physics, electronics resistance
5.  roentgen or röntgen
6.  chess rook
7.  Royal
8.  chem gas constant
9.  in the US and Australia
 a.  restricted exhibition (used to describe a category of film certified as unsuitable for viewing by anyone under the age of 18)
 b.  (as modifier): an R film

Registered Trademark
See trademark

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
Cite This Source's 21st Century Lexicon
Main Entry:  registered trademark
Part of Speech:  n
Definition:  a trademark that is officially or legally certified by a government, as the U. S. Patent and Trademark Office
Example:  Product wrappers and business documents often indicate that a trademark is registered by adding TM (for ‘trademark’) or R (for ‘registered’) in a superscript circle after the term.'s 21st Century Lexicon
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Word Origin & History

In a circle, meaning "registered (trademark)," first incorporated in U.S. statues 1946. Three Rs (1825) said to have been given as a toast by Sir W. Curtis (1752-1829). R&R "rest and relaxation," first recorded 1953, Amer.Eng.; R&B "rhythm and blues" (type of popular music) first attested 1949, Amer.Eng.
Online Etymology Dictionary, © 2010 Douglas Harper
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American Heritage
Medical Dictionary

r abbr.

R abbr.

  1. radical (usually an alkyl or aryl group)

  2. respiration

  3. respiratory exchange ratio

  4. or r roentgen

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
Science Dictionary
Abbreviation of radius
The symbol for resistance.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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American Heritage
Abbreviations & Acronyms
  1. correlation coefficient

  2. radius

  3. resistance

  1. gas constant

  2. radical

  3. rain

  4. range

  5. Réaumur

  6. receiver

  7. registered trademark

  8. Republican

  9. response

  10. restricted (children under 17 must be accompanied by a parent or guardian)

  11. right

  12. roentgen

  13. rook

  14. run

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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