The *(term) for any "central" part in a software program.

Particularly, a statically linked _(centralized) run-time dispatcher (particularly in an "_(operating system)"). As any centralized bloat, it turns out to be easier to design, but completely inefficient to use.

Also see _(Centralization) in general, and pushing the idea of a kernel to its limit with a _(Microkernel). Oppose to design with _(no-kernel).
