Brn.

Brit.

/ˌbiːˈɑː/, U.S.

/ˌbiˈɑr/

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

Etymology: Symbolic abbreviation for bromine n.

Chemistry.

The element bromine.

ΘΚΠ

the world > matter > chemistry > elements and compounds > metals > specific elements > bromine > [noun]

muride1826

brome1827

bromine1827

Br1831

1831 C. G. B. Daubeny Introd. Atomic Theory 142 (table) Bromine. Br.

1869 H. E. Roscoe Lessons Elem. Chem. (new ed.) xi. 116 Bromine Monoxide, Br₂O, is not known, but the corresponding Hypobromous Acid, HBrO, is known.

1907 G. M. Norman Systematic Pract. Org. Chem. ii. ix. 79 Ethylene Dibromide. C₂H₄Br₂.

1959 Nomencl. Inorg. Chem. (I.U.P.A.C.) 6 The use of the collective names: halogens (F, Cl, Br, I, and At),..may be continued.

1964 Oceanogr. & Marine Biol. 2 297 In Hydra (Pelmatohydra) oligactis uptake of radioactive ions ²⁴Na, ⁸²Br and ⁴²K has been investigated by Lilly (1955).

2000 Jrnl. Physical Chem. A. 104 577/1 The reactions of Br atoms with ethene, propene, and trans-2-butene have been reported.

This is a new entry (OED Third Edition, December 2013; most recently modified version published online December 2021).

> as lemmas

B.R. n. British Rail (formerly Railways).

ΘΚΠ

society > travel > rail travel > railway system or organization > [noun] > under one management > specific

GW1839

Vicinal1895

L.M.S.1923

L.N.E.R.1923

S.R.1923

British Railways1947

B.R.1949

S.N.C.F.1949

British Rail1964

Amtrak1973

1949 Railway Gaz. Jan. Index Suppl. p. v/1 (heading) B.R. Eastern Region.

1958 Spectator 13 June 772/1 The stock BR argument against sleepers is that they are wasteful of accommodation.

1986 Bookseller 25 Jan. 428/2 An eminently practical..book, really to help you get the most out of BR and Godfrey Davis Europcar.

BR n. (also br) chiefly U.S. (in estate agents' usage) bedroom(s).

ΚΠ

1936 Los Angeles Times 7 June ii.-AS 5/4 (advt.) Repossessed:..6-rm. modern Colonial 3 B.R. bungalow.

1994 Minnesota Monthly Feb. 149/1 (advt.) Year round homes..of quality cedar construction. 3–4 BR's.

2005 N.Y. Rev. Bks. 22 Sept. 86 (advt.) 3 BR, 3 baths, simplex apartment..with 3 high-speed Internet access points.

Br. n. Britain.

1681 T. Frankland Ann. King James & King Charles I 400/1 (note) The King of Sweden writes to the K. of Great Br.

1784 T. Jefferson Papers (1953) VII. 542 It would be difficult to find one man among them who would not consider a return under the dominion of Gr. Br. as the greatest of all possible miseries.

1832 J. Bell Syst. Geogr. (new ed.) V. App. 583 (table) Great Br. (without its Colonies).

1998 J. Fleming Hist. Perspectives Climate Change 178 Tyndall, John. ‘Note on the Transmission of Heat Through Gaseous Bodies.’ Proc. Roy. Inst. Gt. Br. 10 (1859): 37.

Br. adj. British.

1771 T. Pennant Synopsis Quadrupeds 7 A pair of horns in the Br. Museum.

1807 T. Young Course Lect. Nat. Philos. II. Index 701/2 Catalogue of works... Enc. Br. Art.

1993 Jrnl. Trop. Pediatrics 39 28/2 Non-benign sickle cell anaemia in western Saudi Arabia. Br J Haemat. 1985.

2005 Asian Woman Feb. 65/1 The latest and greatest sounds that represent the Br-Asian urban experience.

Br. n. brother, chiefly as the title of a member of a male religious order.

ΚΠ

1636 R. Mason Manuell Arch-Confraternitie (title page) Br. Angelus Francis, the least of the Frier Minors, Recollects.

1870 G. M. Hopkins Jrnl. (1937) 133 Br. Yates gave me the following Irish expressions... As weak as a bee's knee.

2011 W. P. Jones Different Kind of Cell viii. 105 Br. Clayton and the brothers of the abbey enjoy a particular spiritual bond.

单词	br
释义	Brn. Brit. /ˌbiːˈɑː/, U.S. /ˌbiˈɑr/ Origin: Formed within English, by clipping or shortening. Etymon: bromine n. Etymology: Symbolic abbreviation for bromine n. Chemistry. The element bromine. ΘΚΠ the world > matter > chemistry > elements and compounds > metals > specific elements > bromine > [noun] muride1826 brome1827 bromine1827 Br1831 1831 C. G. B. Daubeny Introd. Atomic Theory 142 (table) Bromine. Br. 1869 H. E. Roscoe Lessons Elem. Chem. (new ed.) xi. 116 Bromine Monoxide, Br₂O, is not known, but the corresponding Hypobromous Acid, HBrO, is known. 1907 G. M. Norman Systematic Pract. Org. Chem. ii. ix. 79 Ethylene Dibromide. C₂H₄Br₂. 1959 Nomencl. Inorg. Chem. (I.U.P.A.C.) 6 The use of the collective names: halogens (F, Cl, Br, I, and At),..may be continued. 1964 Oceanogr. & Marine Biol. 2 297 In Hydra (Pelmatohydra) oligactis uptake of radioactive ions ²⁴Na, ⁸²Br and ⁴²K has been investigated by Lilly (1955). 2000 Jrnl. Physical Chem. A. 104 577/1 The reactions of Br atoms with ethene, propene, and trans-2-butene have been reported. This is a new entry (OED Third Edition, December 2013; most recently modified version published online December 2021). > as lemmas B.R. B.R. n. British Rail (formerly Railways). ΘΚΠ society > travel > rail travel > railway system or organization > [noun] > under one management > specific GW1839 Vicinal1895 L.M.S.1923 L.N.E.R.1923 S.R.1923 British Railways1947 B.R.1949 S.N.C.F.1949 British Rail1964 Amtrak1973 1949 Railway Gaz. Jan. Index Suppl. p. v/1 (heading) B.R. Eastern Region. 1958 Spectator 13 June 772/1 The stock BR argument against sleepers is that they are wasteful of accommodation. 1986 Bookseller 25 Jan. 428/2 An eminently practical..book, really to help you get the most out of BR and Godfrey Davis Europcar. extracted from Bn. BR BR n. (also br) chiefly U.S. (in estate agents' usage) bedroom(s). ΚΠ 1936 Los Angeles Times 7 June ii.-AS 5/4 (advt.) Repossessed:..6-rm. modern Colonial 3 B.R. bungalow. 1994 Minnesota Monthly Feb. 149/1 (advt.) Year round homes..of quality cedar construction. 3–4 BR's. 2005 N.Y. Rev. Bks. 22 Sept. 86 (advt.) 3 BR, 3 baths, simplex apartment..with 3 high-speed Internet access points. extracted from Bn. Br. Br. n. Britain. Π 1681 T. Frankland Ann. King James & King Charles I 400/1 (note) The King of Sweden writes to the K. of Great Br. 1784 T. Jefferson Papers (1953) VII. 542 It would be difficult to find one man among them who would not consider a return under the dominion of Gr. Br. as the greatest of all possible miseries. 1832 J. Bell Syst. Geogr. (new ed.) V. App. 583 (table) Great Br. (without its Colonies). 1998 J. Fleming Hist. Perspectives Climate Change 178 Tyndall, John. ‘Note on the Transmission of Heat Through Gaseous Bodies.’ Proc. Roy. Inst. Gt. Br. 10 (1859): 37. extracted from Bn. Br. Br. adj. British. Π 1771 T. Pennant Synopsis Quadrupeds 7 A pair of horns in the Br. Museum. 1807 T. Young Course Lect. Nat. Philos. II. Index 701/2 Catalogue of works... Enc. Br. Art. 1993 Jrnl. Trop. Pediatrics 39 28/2 Non-benign sickle cell anaemia in western Saudi Arabia. Br J Haemat. 1985. 2005 Asian Woman Feb. 65/1 The latest and greatest sounds that represent the Br-Asian urban experience. extracted from Bn. Br. Br. n. brother, chiefly as the title of a member of a male religious order. ΚΠ 1636 R. Mason Manuell Arch-Confraternitie (title page) Br. Angelus Francis, the least of the Frier Minors, Recollects. 1870 G. M. Hopkins Jrnl. (1937) 133 Br. Yates gave me the following Irish expressions... As weak as a bee's knee. 2011 W. P. Jones Different Kind of Cell viii. 105 Br. Clayton and the brothers of the abbey enjoy a particular spiritual bond. extracted from Bn. < n.1831 as lemmas
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