microstructure

American  

[mahy-kroh-struhk-cher] / ˈmaɪ kroʊˌstrʌk tʃər /

noun

Metallurgy.

1. the structure of a metal or alloy as observed, after etching and polishing, under a high degree of magnification.

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microstructure British  

/ ˈmaɪkrəʊˌstrʌktʃə /

noun

1. structure on a microscopic scale, esp the structure of an alloy as observed by etching, polishing, and observation under a microscope

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Etymology

Origin of microstructure

First recorded in 1880–85; micro- + structure

Example Sentences

Aluminum's strength depends heavily on its microstructure, particularly the size and density of tiny internal features called "precipitates."

From Science Daily • Dec. 29, 2025

Nonetheless, they warn that these “rotations can work for brief periods, but unless there is a structural shift in the economy, the microstructure of the equity market almost ensures such rotations will be short-lived.”

From Barron's • Nov. 19, 2025

This result suggests that not only the electronic structure and composition of the material but also the design and control of the microstructure are important for enhancing the anomalous Nernst coefficient.

From Science Daily • May 9, 2024

The main focus of the development of magnetic materials for transverse thermoelectric conversion has been the exploration of new alloys based on electronic structure, with no research on the microstructure within the materials.

From Science Daily • May 9, 2024

Nickel can be alloyed with steel in various percentages, each percentage having a very definite effect on the microstructure.

From The Working of Steel Annealing, Heat Treating and Hardening of Carbon and Alloy Steel by Colvin, Fred H. (Fred Herbert)