isomorphous

[ahy-suh-mawr-fuhs]

adjective

Chemistry, Crystallography.

1. (of a compound or mineral) capable of crystallizing in a form similar to that of another compound or mineral, used especially of substances so closely related that they form end members of a series of solid solutions.

Word History and Origins

Origin of isomorphous¹

First recorded in 1820–30; iso- + -morphous

Example Sentences

Similarity of crystalline form in substances which are chemically related is frequently met with and is a relation of much 591 importance: such substances are described as being “isomorphous.”

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The types are usually modified by isomorphous replacement of some of their elements.

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Epsom salts crystallizes in the orthorhombic system, being isomorphous with the corresponding zinc and nickel sulphates, and also with magnesium chromate.

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The majority of the chromates are yellow in colour, and many of them are isomorphous with the corresponding sulphates.

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Arsenic possesses a steel-grey colour, and a decided metallic lustre; it crystallizes on sublimation and slow condensation in rhombohedra, isomorphous with those of antimony and tellurium.

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