Multikerros

Multikerros is a Finnish term meaning a structure composed of several layers. It is used across disciplines to describe systems where information, material, or properties are stratified in stacked layers, which may be distinct or interdependent. The term emphasizes layering rather than any single layer.

In technology and computing, multikerros denotes layered architecture, such as the separation of concerns in software design (presentation, logic, data). It is also used for multilayer neural networks, where multiple hidden layers enable increasingly complex representations. In computer networking, multilayer models like the OSI model describe communication across separate protocol layers.

In materials science, multikerros refers to layered coatings or films composed of alternating materials. These multilayer structures can tailor optical, electrical, or mechanical properties, such as improved hardness, corrosion resistance, thermal stability, or optical interference effects.

In geology, earth sciences, and related fields, multikerros describes stratified deposits or soils with several horizons or strata. The concept also appears in food and industrial contexts as a descriptor for products with several layers, such as multikerroskakku in baking.

Etymology and linguistics: The word derives from kerros, layer, with the prefix multi-, reflecting the multiplicity of layers. It is used in Finnish technical and scientific diction to translate or adapt the broader English term multilayer or multilayered.