Prn.

Brit.

/piːˈɑː/, U.S.

/piˈɑr/

Origin: Formed within English, by clipping or shortening. Etymon: praseodymium n.

Etymology: Symbolic abbreviation for praseodymium n.

Chemistry.

The element praseodymium.

ΚΠ

1885 Jrnl. Chem. Soc. 48 1113 Praseodymium, Pr, forms green salts.

1922 T. M. Lowry Inorg. Chem. xxxiv. 666 (table) Classification of the elements of the Rare Earths... Praseodymium Pr = 140.9..60.

1949 F. C. Nachod Ion Exchange 193 Marinsky, Glendenin, and Coryell took a sample containing the praseodymium group of elements which had been isolated from a fission product mixture (Pr, Nd, and [isotope] 61).

1998 R. E. Krebs Hist. & Use Earth's Chem. Elem. 225 As a metal, Pr is hygroscopic (absorbs water) and tarnishes in the atmosphere.

This is a new entry (OED Third Edition, December 2006; most recently modified version published online March 2022).

> as lemmas

P.R.

P.R. n. photographic reconnaissance.

ΚΠ

1943 Aeroplane Spotter 3 Dec. 278 (caption) The De Havilland P.R. Mosquito.

1946 R.A.F. Jrnl. May 153 We are indebted for the photographs and specialized articles with which the P.R. people supplied us.

1958 Times Lit. Suppl. 24 Jan. 48/5 Another part of the secret was to have P.R. grouped together.

extracted from Pn.

P.R.

P.R. n. (also P.-R.) Pre-Raphaelite.

ΚΠ

1851 Art Jrnl. July 186/2 A school..that..will continue to exist unless Mr. Ruskin and his friends the P.-R.s upset it.

1874 L. Troubridge Life amongst Troubridges (1966) ix. 75 Amy's present rage..is to make her room pre-Raphaelite, with a border of P.R. bulrushes all round it.

extracted from Pn.

P.R.

P.R. n. Boxing prize ring.

ΚΠ

1829 P. Egan Boxiana New Ser. II. 8 A boxer of considerable notoriety in the London P.R.

1889 E. B. Michell Boxing in W. H. Pollock et al. Fencing (Badminton Libr. of Sports & Pastimes) i. 125 The belt—the emblem of modern championship in the P.R.

1966 J. W. Gurnett & C. H. J. Kyte Cassell's Dict. Abbrev. 170/2 P.R., Prize Ring.

extracted from Pn.

PR n. (also P.R.) proportional representation.

ΘΚΠ

society > authority > office > appointment to office > choosing or fact of being chosen for office > election of representative body by vote > right to vote at elections > [noun] > system of representation

proportional representation1870

PR1885

proportionalism1885

1885 H. Sidgwick in A. Sidgwick & E. M. Sidgwick Henry Sidgwick (1906) 400 The application of the principle of P.R. to University Constituencies.

1924 Manch. Guardian 2 May 9/1 The Labour party and Labour leaders have always been divided upon the subject of P.R.

1974 Times 2 Mar. 14/4 If PR is to come in Britain the crucial issue is whether it is to be the single-member or multi~member kind.

2003 Mirror (Nexis) 12 May 2 The party want to see proportional representation, PR, replace the traditional first-past-the-post system—a move opposed by many Labour backbenchers.

extracted from Pn.

PR n. (also p.r.) public relations.

ΘΚΠ

society > communication > information > publishing or spreading abroad > advertising > business of advertising > [noun] > public relations

public relations1898

PR1942

1942 E. Partridge Dict. Abbrev. 77/1 P.R., Public Relations. (The publicity department of certain Services and Ministries.)

1977 Time 31 Jan. 48/3 The p.r. man behind this is the star.

1992 Watertown (N.Y.) Daily Times 26 Jan. 6/3 Even if some of Kessler's actions are nothing more than brilliant P.R. stunts, he's bringing attention to consumer and health issues and making the food and drug industries nervous.

extracted from Pn.

PR n. Puerto Rico; Puerto Rican.

ΚΠ

1909 Cent. Dict. Suppl. P.R., an abbreviation..(b) of Porto Rico.

1972 D. E. Westlake Cops & Robbers (1973) 9 There were no customers in there; just the Puerto Rican clerk... The PR was neutral as gray paint.

1990 T. Robbins Skinny Legs & All 125 A P.R. girl would go to church, even, in shoes like hers, but not a blanquita.

extracted from Pn.

n.1885

as lemmas

单词	pr
释义	Prn. Brit. /piːˈɑː/, U.S. /piˈɑr/ Origin: Formed within English, by clipping or shortening. Etymon: praseodymium n. Etymology: Symbolic abbreviation for praseodymium n. Chemistry. The element praseodymium. ΚΠ 1885 Jrnl. Chem. Soc. 48 1113 Praseodymium, Pr, forms green salts. 1922 T. M. Lowry Inorg. Chem. xxxiv. 666 (table) Classification of the elements of the Rare Earths... Praseodymium Pr = 140.9..60. 1949 F. C. Nachod Ion Exchange 193 Marinsky, Glendenin, and Coryell took a sample containing the praseodymium group of elements which had been isolated from a fission product mixture (Pr, Nd, and [isotope] 61). 1998 R. E. Krebs Hist. & Use Earth's Chem. Elem. 225 As a metal, Pr is hygroscopic (absorbs water) and tarnishes in the atmosphere. This is a new entry (OED Third Edition, December 2006; most recently modified version published online March 2022). > as lemmas P.R. P.R. n. photographic reconnaissance. ΚΠ 1943 Aeroplane Spotter 3 Dec. 278 (caption) The De Havilland P.R. Mosquito. 1946 R.A.F. Jrnl. May 153 We are indebted for the photographs and specialized articles with which the P.R. people supplied us. 1958 Times Lit. Suppl. 24 Jan. 48/5 Another part of the secret was to have P.R. grouped together. extracted from Pn. P.R. P.R. n. (also P.-R.) Pre-Raphaelite. ΚΠ 1851 Art Jrnl. July 186/2 A school..that..will continue to exist unless Mr. Ruskin and his friends the P.-R.s upset it. 1874 L. Troubridge Life amongst Troubridges (1966) ix. 75 Amy's present rage..is to make her room pre-Raphaelite, with a border of P.R. bulrushes all round it. extracted from Pn. P.R. P.R. n. Boxing prize ring. ΚΠ 1829 P. Egan Boxiana New Ser. II. 8 A boxer of considerable notoriety in the London P.R. 1889 E. B. Michell Boxing in W. H. Pollock et al. Fencing (Badminton Libr. of Sports & Pastimes) i. 125 The belt—the emblem of modern championship in the P.R. 1966 J. W. Gurnett & C. H. J. Kyte Cassell's Dict. Abbrev. 170/2 P.R., Prize Ring. extracted from Pn. PR PR n. (also P.R.) proportional representation. ΘΚΠ society > authority > office > appointment to office > choosing or fact of being chosen for office > election of representative body by vote > right to vote at elections > [noun] > system of representation proportional representation1870 PR1885 proportionalism1885 1885 H. Sidgwick in A. Sidgwick & E. M. Sidgwick Henry Sidgwick (1906) 400 The application of the principle of P.R. to University Constituencies. 1924 Manch. Guardian 2 May 9/1 The Labour party and Labour leaders have always been divided upon the subject of P.R. 1974 Times 2 Mar. 14/4 If PR is to come in Britain the crucial issue is whether it is to be the single-member or multi~member kind. 2003 Mirror (Nexis) 12 May 2 The party want to see proportional representation, PR, replace the traditional first-past-the-post system—a move opposed by many Labour backbenchers. extracted from Pn. PR PR n. (also p.r.) public relations. ΘΚΠ society > communication > information > publishing or spreading abroad > advertising > business of advertising > [noun] > public relations public relations1898 PR1942 1942 E. Partridge Dict. Abbrev. 77/1 P.R., Public Relations. (The publicity department of certain Services and Ministries.) 1977 Time 31 Jan. 48/3 The p.r. man behind this is the star. 1992 Watertown (N.Y.) Daily Times 26 Jan. 6/3 Even if some of Kessler's actions are nothing more than brilliant P.R. stunts, he's bringing attention to consumer and health issues and making the food and drug industries nervous. extracted from Pn. PR PR n. Puerto Rico; Puerto Rican. ΚΠ 1909 Cent. Dict. Suppl. P.R., an abbreviation..(b) of Porto Rico. 1972 D. E. Westlake Cops & Robbers (1973) 9 There were no customers in there; just the Puerto Rican clerk... The PR was neutral as gray paint. 1990 T. Robbins Skinny Legs & All 125 A P.R. girl would go to church, even, in shoes like hers, but not a blanquita. extracted from Pn. < n.1885 as lemmas
随便看	overconsolidated overconsolidation overconsumption overconsumptions overcontented overcontrol overcontrolled overcontrolling overcontrols overcontroversial overcook overcooked overcooking overcooks overcool overcooled overcooling overcools overcope overcopious overcord overcorned overcorrect overcorrected overcorrecting