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R 1
(är) A trademark for a movie rating indicating that admission will be granted only to persons of or over a certain age, usually 17, unless accompanied by a parent or guardian.
R 2
2. The symbol for a hydrocarbon side chain or substituent of variable chemical structure.
R 3
abbr.2. Réaumur (scale)
4. Republican
6. right
8. rook (chess)
r 1
or R(är)n.pl.r's or R's also rs or Rs1. The 18th letter of the modern English alphabet.
2. Any of the speech sounds represented by the letter r.
4. Something shaped like the letter R.
r 2
abbr.2. Genetics recombinant
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
r
(ɑː) orR
n, plr's, R'sorRs1. (Linguistics) the 18th letter and 14th consonant of the modern English alphabet
2. (Phonetics & Phonology) a speech sound represented by this letter, in English usually an alveolar semivowel, as in red
R
symbol for2. (Currencies) currencyb. rupee
4. (General Physics) physicselectronics resistance
6. (Chess & Draughts) chess rook
8. (Chemistry) chem gas constant
9. (Film) (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)
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
R, r
(ɑr)n., pl. RsR's, rsr's.
1. the 18th letter of the English alphabet, a consonant.
2. any spoken sound represented by this letter.
4. a written or printed representation of the letter R or r.
R
2. Math. ratio.
4. restricted: a motion-picture rating advising that children under 17 will not be admitted unless accompanied by an adult. Compare G (def. 2), NC-17, PG,PG-13,X (def. 7).
6. roentgen.
R
Symbol.
2. arginine.
3. registered trademark: written as superscript ® following a name registered with the U.S. Patent and Trademark Office.
r
1. radius.
3. roentgen.
5. ruble.
r
Ecol.
the intrinsic rate of increase of a population, equivalent to the difference between the birth and death rates divided by the number of individuals in the population. Also called Malthusian parameter.
R.
R/gachalifecringe
2. Radical.
4. railroad.
6. (in South Africa) rand.
8. Also, R (in prescriptions) take.
9. rector.
11. Republican.
13. Rex.
15. river.
17. royal.
19. rupee.
r.
2. railroad.
4. range.
6. Com. received.
8. replacing.
10. river.
12. rod.
14. rubber.
16. Baseball. run.
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
r
2. or RElectricity Abbreviation of resistance
The American Heritage® Student Science Dictionary, Second Edition. Copyright © 2014 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
| Noun | 1. | R - a unit of radiation exposure; the dose of ionizing radiation that will produce 1 electrostatic unit of electricity in 1 cc of dry air |
| 2. | R - (physics) the universal constant in the gas equation: pressure times volume = R times temperature; equal to 8.3143 joules per kelvin per mole gas constant, universal gas constant natural philosophy, physics - the science of matter and energy and their interactions; 'his favorite subject was physics' constant - a number representing a quantity assumed to have a fixed value in a specified mathematical context; 'the velocity of light is a constant' | |
| 3. | r - the 18th letter of the Roman alphabet Latin alphabet, Roman alphabet - the alphabet evolved by the ancient Romans which serves for writing most of the languages of western Europe alphabetic character, letter of the alphabet, letter - the conventional characters of the alphabet used to represent speech; 'his grandmother taught him his letters' | |
| 4. | r - the length of a line segment between the center and circumference of a circle or sphere diam, diameter - the length of a straight line passing through the center of a circle and connecting two points on the circumference semidiameter - the apparent radius of a celestial body when viewed as a disc from the earth radius of curvature - the radius of the circle of curvature; the absolute value of the reciprocal of the curvature of a curve at a given point length - the linear extent in space from one end to the other; the longest dimension of something that is fixed in place; 'the length of the table was 5 feet' |
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.
R
1r1[ɑːʳ]N (= letter) → R, r fR Kelly
R for Robert → R de Ramón
the three Rs (= reading, writing and arithmetic) lectura, escritura y aritméticaTHREE RS
R
2r2A.ABBRR&l Tracking
2. (Brit) =Regina → R
4. =right → dcha, der, dero
6. (US) (Pol) =Republican
Collins Spanish Dictionary - Complete and Unabridged 8th Edition 2005 © William Collins Sons & Co. Ltd. 1971, 1988 © HarperCollins Publishers 1992, 1993, 1996, 1997, 2000, 2003, 2005
R
r[ˈɑːr]n (= letter) → R, r mR for Robert, R for Roger (US) → R comme Raoul
R
[ˈɑːr]abbr (=river) → riv., fl
(US)(CINEMA) (=restricted) interdit aux moins de 17 ans
R/wallstreetbets
(British) (=Rex, Regina)
Collins English/French Electronic Resource. © HarperCollins Publishers 2005
R
, rn → Rnt, → rnt; three Rs(= reading, writing and arithmetic) → Lesen, Schreiben und Rechnen(die drei grundlegenden Fähigkeiten eines gebildeten Menschen)
R
(US Film) abbr ofrestricted → für Jugendlichenichtgeeignet
r
abbr ofright → r.Collins German Dictionary – Complete and Unabridged 7th Edition 2005. © William Collins Sons & Co. Ltd. 1980 © HarperCollins Publishers 1991, 1997, 1999, 2004, 2005, 2007
R
r[ɑːʳ]n (R/memes
letter) → R, r f or m invthe three Rs → leggere, scrivere e far di conto
R for Robert (Am) R for Roger → R come Roma
Collins Italian Dictionary 1st Edition © HarperCollins Publishers 1995
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