| 单词 | r |
| 释义 | rEcology.the theoretical 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 . Definition for r (2 of 10)r abbreviationDefinition for r (3 of 10)R1 or r[ ahr ] / ɑr / noun, plural R's or Rs, r's or rs.the 18th letter of the English alphabet, a consonant. any spoken sound represented by the letter R or r, as in ran, carrot, or rhyme. something having the shape ofR. a written or printed representation of the letter R or r. a device, as a printer's type, for reproducing the letter R or r. three R's. Definition for r (4 of 10)R2 [ ahr ] / ɑr / verbInformal. are: Oysters R in season. Definition for r (5 of 10)R3 abbreviationTrademark. restricted: a rating assigned to a movie by the Motion Picture Association of America indicating that children under the age of 17 will not be admitted to a theater showing the film unless accompanied by an adult. Compare G3 (def. 2), NC-17, PG, PG-13. Origin of R3An American designation established in 1968 Definition for r (6 of 10)R4 abbreviationDefinition for r (7 of 10)R5 Symbol.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. Physics. universal gas constant. registered trademark: written as superscript ® following a name registered with the U.S. Patent and Trademark Office. Definition for r (8 of 10)r. Definition for r (9 of 10)R.1 or R.(in prescriptions) take. Origin of R.1From the Latin word recipe Definition for r (10 of 10)R.2 Dictionary.com UnabridgedBased on the Random House Unabridged Dictionary, © Random House, Inc. 2020 British Dictionary definitions for r (1 of 5)r R/ (ɑː) / noun plural r's, R's or Rsthe 18th letter and 14th consonant of the modern English alphabet a speech sound represented by this letter, in English usually an alveolar semivowel, as in red See three Rs British Dictionary definitions for r (2 of 5)R symbol forBritish Dictionary definitions for r (3 of 5)r. abbreviation forrare recto Also: r rod (unit of length) ruled cricket baseball run(s) British Dictionary definitions for r (4 of 5)R. r.abbreviation forregistered (trademark) right river rouble British Dictionary definitions for r (5 of 5)R. abbreviation forWord Origin for R.(sense 3) Latin: Queen (sense 6) Latin: King 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 Idioms and Phrases with rR see three R's. The American Heritage® Idioms Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. Medical definitions for r (1 of 2)r abbr.racemic Medical definitions for r (2 of 2)R abbr.right radical (usually an alkyl or aryl group) respiration respiratory exchange ratio or r roentgen The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company. Scientific definitions for r (1 of 2)r Abbreviation of radius Scientific definitions for r (2 of 2)R The symbol for resistance. The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved. |
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