perovskiten.

Brit.

/pəˈrɒvskʌɪt/, U.S.

/pəˈrɑvskaɪt/

Forms: 1800s perofskite, 1800s perowskite, 1800s– perovskite.

Origin: A borrowing from German. Etymon: German Perowskit.

Etymology: < German Perowskit (G. Rose 1839, in Ann. der Physik u. Chemie 48 558) < the name of Lev Alekseevič Perovskij (1792–1856; also transliterated Perofski , Perovski , Perowski ), Russian statesman + German -it -ite suffix¹. Compare Russian perovskit. N.E.D. (1905) entered this under perofskite, with the pronunciation (pĕrǫ·fskəit) /pəˈrɒfskaɪt/.

Mineralogy.

1. The mineral calcium titanate, CaTiO₃, an accessory mineral in igneous rocks which occurs as yellow, brown, or black orthorhombic pseudocubic crystals (usually with considerable substitution of the calcium and titanium) and is thought to be a major constituent of the upper mantle. Also: any of a group of related minerals and ceramics with the general formula ABO₃ and the same crystal structure.

ΘΚΠ

the world > the earth > minerals > types of mineral > oxides and hydroxides > [noun] > oxides of titanium, tantalum, nickel, or rare earths > perovskite

perovskite1840

knopite1896

1840 Edinb. New Philos. Jrnl. 29 418 (heading) Perowskite, a new mineral species.

1844 J. D. Dana Syst. Mineral. (ed. 2) 424 Perovskite consists principally of titanic acid or oxide and lime.

1872 Nevill Catal. Min. 122 Perowskite.

1878 P. H. Lawrence tr. B. von Cotta Rocks Classified (new ed.) 39 Perofskite occurs as an accessory in chlorite-schist.

1906 J. P. Iddings Rock Minerals 463 Perovskite occurs in basic igneous rocks, peridotite, melilite-basalt, alnöite, and in nephelite- and leucite-bearing rocks, that is, in titaniferous rocks low or comparatively low in silica.

1939 R. C. Evans Introd. Crystal Chem. viii. 204 The structure of perovskite corresponds to the composition ABO₃ and has the cubic or pseudo-cubic unit cell shown in Fig. 46. A ions are situated at the corners of the cell and a B ion at its centre, while the faces are centred by oxygen.

1970 Mineral. Abstr. 21 155/1 The composition of synthetic complex perovskites can be expressed in terms of simpler formula units.

2001 R. W. Cahn Coming of Materials Sci. vii. 279 Bednorz and Müller (1986) discovered the first of the extensive family of perovskite-related ceramics all containing copper oxide which have critical temperatures up to and even above the boiling point of liquid nitrogen.

2. attributive, with reference to the crystal structure of perovskite.

ΚΠ

1939 R. C. Evans Introd. Crystal Chem. viii. 205 The appearance of KIO₃ and RbIO₃ among the compounds with the perovskite structure is of particular interest.

1955 Physical Rev. 98 1201/2 KNbO₃ and KTaO₃ are ferroelectrics of the perovskite type.

1991 Nature 24 Jan. 283/2 (Mg,Fe)SiO₃ in the perovskite structure is the dominant mineral of much of the lower mantle.

This entry has been updated (OED Third Edition, December 2005; most recently modified version published online March 2022).

单词	perovskite
释义	perovskiten. Brit. /pəˈrɒvskʌɪt/, U.S. /pəˈrɑvskaɪt/ Forms: 1800s perofskite, 1800s perowskite, 1800s– perovskite. Origin: A borrowing from German. Etymon: German Perowskit. Etymology: < German Perowskit (G. Rose 1839, in Ann. der Physik u. Chemie 48 558) < the name of Lev Alekseevič Perovskij (1792–1856; also transliterated Perofski , Perovski , Perowski ), Russian statesman + German -it -ite suffix¹. Compare Russian perovskit. N.E.D. (1905) entered this under perofskite, with the pronunciation (pĕrǫ·fskəit) /pəˈrɒfskaɪt/. Mineralogy. 1. The mineral calcium titanate, CaTiO₃, an accessory mineral in igneous rocks which occurs as yellow, brown, or black orthorhombic pseudocubic crystals (usually with considerable substitution of the calcium and titanium) and is thought to be a major constituent of the upper mantle. Also: any of a group of related minerals and ceramics with the general formula ABO₃ and the same crystal structure. ΘΚΠ the world > the earth > minerals > types of mineral > oxides and hydroxides > [noun] > oxides of titanium, tantalum, nickel, or rare earths > perovskite perovskite1840 knopite1896 1840 Edinb. New Philos. Jrnl. 29 418 (heading) Perowskite, a new mineral species. 1844 J. D. Dana Syst. Mineral. (ed. 2) 424 Perovskite consists principally of titanic acid or oxide and lime. 1872 Nevill Catal. Min. 122 Perowskite. 1878 P. H. Lawrence tr. B. von Cotta Rocks Classified (new ed.) 39 Perofskite occurs as an accessory in chlorite-schist. 1906 J. P. Iddings Rock Minerals 463 Perovskite occurs in basic igneous rocks, peridotite, melilite-basalt, alnöite, and in nephelite- and leucite-bearing rocks, that is, in titaniferous rocks low or comparatively low in silica. 1939 R. C. Evans Introd. Crystal Chem. viii. 204 The structure of perovskite corresponds to the composition ABO₃ and has the cubic or pseudo-cubic unit cell shown in Fig. 46. A ions are situated at the corners of the cell and a B ion at its centre, while the faces are centred by oxygen. 1970 Mineral. Abstr. 21 155/1 The composition of synthetic complex perovskites can be expressed in terms of simpler formula units. 2001 R. W. Cahn Coming of Materials Sci. vii. 279 Bednorz and Müller (1986) discovered the first of the extensive family of perovskite-related ceramics all containing copper oxide which have critical temperatures up to and even above the boiling point of liquid nitrogen. 2. attributive, with reference to the crystal structure of perovskite. ΚΠ 1939 R. C. Evans Introd. Crystal Chem. viii. 205 The appearance of KIO₃ and RbIO₃ among the compounds with the perovskite structure is of particular interest. 1955 Physical Rev. 98 1201/2 KNbO₃ and KTaO₃ are ferroelectrics of the perovskite type. 1991 Nature 24 Jan. 283/2 (Mg,Fe)SiO₃ in the perovskite structure is the dominant mineral of much of the lower mantle. This entry has been updated (OED Third Edition, December 2005; most recently modified version published online March 2022). < n.1840
随便看	nervousnesses nervousser nervoussest nervovital nervule nervules nervulet nervuration nervurations nervure nervures nervy nes nescaff nescafé nescience nesciences nescient nescienter nescientest nescients nescio nescious nese nese end