südamikud
Südamikud is the plural form of the Estonian noun südamik, which refers to the core, nucleus, or central part of something. The term is used across disciplines to denote the inner or most essential portion of an object, system, or concept.
In geology and related fields, südamikud commonly describe core samples obtained by drilling into rock or sediment.
In technology and engineering, the word can denote the central components or cores of devices and systems.
In science and everyday usage, südamikud are used metaphorically to signify the core ideas or central concepts
Etymology and grammar: südamikud is the plural of südamik, a neuter noun. The singular form is used