pseudomorphismn.

Brit.

/ˌs(j)uːdə(ʊ)ˈmɔːfɪz(ə)m/, U.S.

/ˌsudoʊˈmɔrˌfɪz(ə)m/

Origin: Formed within English, by compounding. Etymons: pseudo- comb. form, -morphism comb. form, pseudomorphous adj.

Etymology: < pseudo- comb. form + -morphism comb. form, after pseudomorph n., pseudomorphic adj., pseudomorphous adj. Compare French pseudomorphisme (1861 or earlier). Compare earlier pseudomorphosis n.

Chiefly Mineralogy.

The formation or occurrence of pseudomorphs, alteration of substance without change of appearance; the state or condition of a pseudomorph.

ΚΠ

1849 J. D. Dana U.S. Exploring Exped.: Geol. App. ii. 731 An article on pseudomorphism.

1888 H. E. Stockbridge Rocks & Soils ii. ii. 92 Pseudomorphism, the change of constituents of a mineral without change of crystalline form, is a variety of metamorphosis as important as it is remarkable.

1952 Proc. Royal Soc. A. 215 165 The oxide possessed the normal crystal structure. This point is of importance in connexion with the question of possible ‘pseudomorphic’ growth of the oxide, and proves that for thicknesses of 25 Å..there is no sign of pseudomorphism.

1998 Chem. Geol. 144 64/1 The evaporite sequences..have been strongly modified..by replacement (pseudomorphism) of sulphate minerals by quartz, calcite or, more rarely, celestite.

This entry has been updated (OED Third Edition, September 2007; most recently modified version published online March 2022).

单词	pseudomorphism
释义	pseudomorphismn. Brit. /ˌs(j)uːdə(ʊ)ˈmɔːfɪz(ə)m/, U.S. /ˌsudoʊˈmɔrˌfɪz(ə)m/ Origin: Formed within English, by compounding. Etymons: pseudo- comb. form, -morphism comb. form, pseudomorphous adj. Etymology: < pseudo- comb. form + -morphism comb. form, after pseudomorph n., pseudomorphic adj., pseudomorphous adj. Compare French pseudomorphisme (1861 or earlier). Compare earlier pseudomorphosis n. Chiefly Mineralogy. The formation or occurrence of pseudomorphs, alteration of substance without change of appearance; the state or condition of a pseudomorph. ΚΠ 1849 J. D. Dana U.S. Exploring Exped.: Geol. App. ii. 731 An article on pseudomorphism. 1888 H. E. Stockbridge Rocks & Soils ii. ii. 92 Pseudomorphism, the change of constituents of a mineral without change of crystalline form, is a variety of metamorphosis as important as it is remarkable. 1952 Proc. Royal Soc. A. 215 165 The oxide possessed the normal crystal structure. This point is of importance in connexion with the question of possible ‘pseudomorphic’ growth of the oxide, and proves that for thicknesses of 25 Å..there is no sign of pseudomorphism. 1998 Chem. Geol. 144 64/1 The evaporite sequences..have been strongly modified..by replacement (pseudomorphism) of sulphate minerals by quartz, calcite or, more rarely, celestite. This entry has been updated (OED Third Edition, September 2007; most recently modified version published online March 2022). < n.1849
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