| 释义 |
Collins Concise English Dictionary © HarperCollins Publishers:: r. abbreviation for - rare
- recto
- Also: r rod (unit of length)
- ruled
- run(s)
R, r /ɑr/USA pronunciation n., pl. Rs or R's, rs or r's. - the 18th letter of the English alphabet, a consonant.
R, an abbreviation of:- Mathematicsratio.
- Biochemistry, Clothingregular: a man's suit or coat size.
- Show Businessrestricted: a motion-picture rating advising that children under the age of 17 will not be admitted unless accompanied by an adult. Compare G (def. 2),NC-17,PG,PG-13,X (def. 7).
- Show Businessright.
R, [Symbol.]- registered trademark: written as superscript ® following a name registered with the U.S. Patent and Trademark Office.
- Electronicsresistance.
r, an abbreviation of:- radius.
R., an abbreviation of:- Mathematicsradius.
- Rail Transportrailroad.
- Rail Transportrailway.
- GovernmentRepublican.
- right.
- river.
- road.
r., an abbreviation of:- Rail Transportrailroad.
- Rail Transportrailway.
- right.
- river.
- road.
- Weights and Measuresrod.
WordReference Random House Unabridged Dictionary of American English © 2024R, r (är),USA pronunciation n., pl. 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.
- See three R's.
R (är),USA pronunciation - Informal Termsv. are:Oysters R in season.
R, - Chemistryradical.
- Mathematicsratio.
- Biochemistry, Clothingregular: a man's suit or coat size.
- Electricityresistance.
- Show Businessrestricted: a rating assigned to a motion picture by the Motion Picture Association of America indicating that children under the age of 17 will not be admitted unless accompanied by an adult. Cf. G (def. 7), PG, PG–13, X. [abbrev. for restricted]
- Show Business[Theat.]stage right.
- Physicsroentgen.
- Chessrook.
R, Symbol.- the 18th in order or in a series, or, when I is omitted, the 17th.
- (sometimes l.c.) the medieval Roman numeral for 80. Cf. Roman numerals.
- Biochemistryarginine.
- [Physics.]See universal gas constant.
- registered trademark: written as superscript ® following a name registered with the U.S. Patent and Trademark Office.
r, - radius.
- Business[Com.]registered (def. 2).
- [Elect.]resistance.
- Physicsroentgen.
- royal.
- Currencyruble.
- Currencypl. rs, rupee.
r, [Ecol.]- Ecologythe 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.
R., - Judaismrabbi.
- Radical.
- Mathematicsradius.
- Rail Transportrailroad.
- Rail Transportrailway.
- Currency(in South Africa) rand;
rands. - Réaumur.
- DrugsAlso, R (in prescriptions) take.
- rector.
- redactor.
- regina.
- GovernmentRepublican.
- response.
- rex.
- river.
- road.
- royal.
- Currencyruble.
- Currencyrupee.
- Show Business[Theat.]stage right.
r., - rabbi.
- Rail Transportrailroad.
- Rail Transportrailway.
- range.
- rare.
- [Com.]received.
- recipe.
- replacing.
- residence.
- right.
- rises.
- river.
- road.
- Weights and Measuresrod.
- royal.
- rubber.
- Currencyruble.
- Sport[Baseball.]run;
runs. - Currencypl. rs. rupee.
Collins Concise English Dictionary © HarperCollins Publishers:: R., r. abbreviation for - registered (trademark)
- right
- river
- rouble
R. abbreviation for - rabbi
- rector
- Regina
- Republican
- response (in Christian liturgy)
- Rex
- River
- Royal
Etymology: (sense 3) Latin: QueenEtymology: (sense 6) Latin: King |