microstructure

The structure of an organism or object as revealed through microscopic examination.

A microscopic component, device, or system, especially one manufactured using MEMS.

Microscopic structure.

Applied especially to metals and alloys, the study of the microstructure of which is now a very important department of engineering.

The fine structure of a material or tissue as revealed by microscopy.

The fine structure of a pure metal or alloy, as revealed by magnifications of 25X or greater.

Fine-scale structure in such variables as temperature, salinity, velocity, etc.