morphotropyn.

Brit.

/mɔːˈfɒtrəpi/, U.S.

/mɔrˈfɑtrəpi/

Origin: Formed within English, by compounding; modelled on a German lexical item. Etymons: morpho- comb. form, -tropy comb. form.

Etymology: < morpho- comb. form + -tropy comb. form, after German Morphotropie (P. Groth 1870, in Ann. der Physik u. Chem. 141 39). Compare earlier morphotropic adj., morphotropism n.

Crystallography.

Change in the structure of a crystal occurring when the replacement of one of its chemical constituents by another reaches a certain critical level; the scientific study of this process.

ΘΚΠ

the world > matter > chemistry > crystallography (general) > other reactions or processes > [noun] > morphotropism

morphotropism1870

morphotropy1900

1900 Rep. Brit. Assoc. Advancem. Sci. 167 Morphotropy and isomorphism have a common cause, and..this is more likely to be discovered by the crystallographic study of substances showing morphotropic relationships than from the examination merely of materials likely to exhibit isomorphism.

1910 Encycl. Brit. VII. 591/1 A striking example of morphotropy is shown by the humite..group of minerals.

1924 W. S. Stiles tr. F. Rinne Crystals & Fine Struct. Matter ix. 105 P. v. Groth has founded the science of morphotropy. By comparing crystalline forms, he succeeded in showing how the replacement of H by (OH), NO₂, NH₂, CH₃, Cl, in benzene (C₆H₆) manifests itself in changes of corresponding angles, and ultimately the symmetry.

1939 R. C. Evans Introd. Crystal Chem. iii. 60 The structural importance of the quantitative lattice theory..lies in the light which it throws on..the problems of polymorphism and morphotropy.

1987 Russ. Jrnl. Inorg. Chem. 32 82/1 When a group of analogous salts can form more than one series of isostructural compounds, cationic morphotropy (change in crystal structure) is observed.

This entry has been updated (OED Third Edition, December 2002; most recently modified version published online March 2022).

单词	morphotropy
释义	morphotropyn. Brit. /mɔːˈfɒtrəpi/, U.S. /mɔrˈfɑtrəpi/ Origin: Formed within English, by compounding; modelled on a German lexical item. Etymons: morpho- comb. form, -tropy comb. form. Etymology: < morpho- comb. form + -tropy comb. form, after German Morphotropie (P. Groth 1870, in Ann. der Physik u. Chem. 141 39). Compare earlier morphotropic adj., morphotropism n. Crystallography. Change in the structure of a crystal occurring when the replacement of one of its chemical constituents by another reaches a certain critical level; the scientific study of this process. ΘΚΠ the world > matter > chemistry > crystallography (general) > other reactions or processes > [noun] > morphotropism morphotropism1870 morphotropy1900 1900 Rep. Brit. Assoc. Advancem. Sci. 167 Morphotropy and isomorphism have a common cause, and..this is more likely to be discovered by the crystallographic study of substances showing morphotropic relationships than from the examination merely of materials likely to exhibit isomorphism. 1910 Encycl. Brit. VII. 591/1 A striking example of morphotropy is shown by the humite..group of minerals. 1924 W. S. Stiles tr. F. Rinne Crystals & Fine Struct. Matter ix. 105 P. v. Groth has founded the science of morphotropy. By comparing crystalline forms, he succeeded in showing how the replacement of H by (OH), NO₂, NH₂, CH₃, Cl, in benzene (C₆H₆) manifests itself in changes of corresponding angles, and ultimately the symmetry. 1939 R. C. Evans Introd. Crystal Chem. iii. 60 The structural importance of the quantitative lattice theory..lies in the light which it throws on..the problems of polymorphism and morphotropy. 1987 Russ. Jrnl. Inorg. Chem. 32 82/1 When a group of analogous salts can form more than one series of isostructural compounds, cationic morphotropy (change in crystal structure) is observed. This entry has been updated (OED Third Edition, December 2002; most recently modified version published online March 2022). < n.1900
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