Rbn.¹

Brit.

/ˌɑːˈbiː/, U.S.

/ˌɑrˈbi/

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

Etymology: Symbolic abbreviation for rubidium n., following the system introduced by Berzelius.First used in German (G. Kirchhoff & R. Bunsen 1861, in Ann. der Physik u. Chem. 113 339).

Chemistry.

The element rubidium.

ΚΠ

1861 Chem. News 26 Oct. 219/1 The hydrate of rubidium, RbO.HO + Aq, is soluble in all proportions in water and alcohol.

1922 T. M. Lowry Inorg. Chem. xxxii. 610 The best source both of rubidium and cæsium is..the minerals petalite and lepidolite, which may contain perhaps ¼ per cent. of Rb₂O and Cs₂O.

1950 F. E. Zeuner Dating Past (ed. 2) x. 334 Minerals suitable for the rubidium/strontium method must be rich in Rb.

1971 I. G. Gass et al. Understanding Earth ii. 43 The two isotopes of natural rubidium are ⁸⁵Rb and ⁸⁷Rb.

2002 Jrnl. Petrol. 43 1756/1 Analyses for Rb, Sr, Y, Zr, Nb, Ba, Pb and rare earth elements (REE) in clinopyroxenes, mica and glasses were made.

This is a new entry (OED Third Edition, December 2008; most recently modified version published online March 2022).

Rbn.²

Brit.

/ˌɑːˈbiː/, U.S.

/ˈɑrˈbi/

Forms: 1900s– RB, 1900s– Rb, 1900s– Rb. (with point), 1900s– rb.

Origin: Formed within English, as an initialism. Etymon: retinoblastoma n.

Etymology: Initialism < retinoblastoma n..

Genetics and Medicine.

= retinoblastoma n.. Also: (more fully Rb gene) the retinoblastoma gene, which suppresses the formation of retinoblastomas and other tumours; (more fully Rb protein) the protein that this gene encodes.

ΘΚΠ

the world > health and disease > ill health > a disease > disorders of eye > [noun] > disorders of retina

retinitis1821

retinitis pigmentosa1859

retinal detachment1860

detached retina1863

choroido-retinitis1869

neuroretinitis1878

chorioretinitis1880

pseudoglioma1884

macular degeneration1918

retinoblastoma1924

pseudofovea1925

retinopathy1930

RP1975

Rb1976

1976 Med. & Pediatric Oncol. 2 379 Sporadic bilateral Rb associated with a long-arm deletion of a D-group chromosome has been reported in 8 children.

1986 S. H. Friend et al. in Nature 16 Oct. 644/1 This malignant tumour, which arises in the eyes of children, can be explained as the result of two distinct genetic changes, each causing loss of function of one of the two homologous copies at a single genetic locus, Rb.., assigned to the q14 band of human chromosome 13.

1987 Nature 15 Oct. 642/2 To identify the RB protein, we selected several human cell lines known to have either normal or altered RB gene expression.

2003 Jrnl. Urol. 170 1987/2 Deletions of genes encoding rb..and p53..are common in human bladder cancers.

2005 Genes & Developm. 18 1681/1 The RB gene was the first known tumor suppressor gene identified.

This is a new entry (OED Third Edition, December 2008; most recently modified version published online March 2022).

单词	rb
释义	Rbn.¹ Brit. /ˌɑːˈbiː/, U.S. /ˌɑrˈbi/ Origin: Formed within English, by clipping or shortening. Etymon: rubidium n. Etymology: Symbolic abbreviation for rubidium n., following the system introduced by Berzelius.First used in German (G. Kirchhoff & R. Bunsen 1861, in Ann. der Physik u. Chem. 113 339). Chemistry. The element rubidium. ΚΠ 1861 Chem. News 26 Oct. 219/1 The hydrate of rubidium, RbO.HO + Aq, is soluble in all proportions in water and alcohol. 1922 T. M. Lowry Inorg. Chem. xxxii. 610 The best source both of rubidium and cæsium is..the minerals petalite and lepidolite, which may contain perhaps ¼ per cent. of Rb₂O and Cs₂O. 1950 F. E. Zeuner Dating Past (ed. 2) x. 334 Minerals suitable for the rubidium/strontium method must be rich in Rb. 1971 I. G. Gass et al. Understanding Earth ii. 43 The two isotopes of natural rubidium are ⁸⁵Rb and ⁸⁷Rb. 2002 Jrnl. Petrol. 43 1756/1 Analyses for Rb, Sr, Y, Zr, Nb, Ba, Pb and rare earth elements (REE) in clinopyroxenes, mica and glasses were made. This is a new entry (OED Third Edition, December 2008; most recently modified version published online March 2022). Rbn.² Brit. /ˌɑːˈbiː/, U.S. /ˈɑrˈbi/ Forms: 1900s– RB, 1900s– Rb, 1900s– Rb. (with point), 1900s– rb. Origin: Formed within English, as an initialism. Etymon: retinoblastoma n. Etymology: Initialism < retinoblastoma n.. Genetics and Medicine. = retinoblastoma n.. Also: (more fully Rb gene) the retinoblastoma gene, which suppresses the formation of retinoblastomas and other tumours; (more fully Rb protein) the protein that this gene encodes. ΘΚΠ the world > health and disease > ill health > a disease > disorders of eye > [noun] > disorders of retina retinitis1821 retinitis pigmentosa1859 retinal detachment1860 detached retina1863 choroido-retinitis1869 neuroretinitis1878 chorioretinitis1880 pseudoglioma1884 macular degeneration1918 retinoblastoma1924 pseudofovea1925 retinopathy1930 RP1975 Rb1976 1976 Med. & Pediatric Oncol. 2 379 Sporadic bilateral Rb associated with a long-arm deletion of a D-group chromosome has been reported in 8 children. 1986 S. H. Friend et al. in Nature 16 Oct. 644/1 This malignant tumour, which arises in the eyes of children, can be explained as the result of two distinct genetic changes, each causing loss of function of one of the two homologous copies at a single genetic locus, Rb.., assigned to the q14 band of human chromosome 13. 1987 Nature 15 Oct. 642/2 To identify the RB protein, we selected several human cell lines known to have either normal or altered RB gene expression. 2003 Jrnl. Urol. 170 1987/2 Deletions of genes encoding rb..and p53..are common in human bladder cancers. 2005 Genes & Developm. 18 1681/1 The RB gene was the first known tumor suppressor gene identified. This is a new entry (OED Third Edition, December 2008; most recently modified version published online March 2022). < n.¹1861n.²1976
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