Pääkulku
Pääkulku is an Estonian term used in hydrology and water management to denote the principal watercourse through which the majority of discharge moves within a watershed. The word is formed from pää, meaning main or chief, and kulku, meaning flow or passage, reflecting its descriptive origin.
In hydrological analyses, pääkulku refers to the dominant channel that directs most runoff under typical and
Usage and scope vary slightly across sources, but pääkulku generally refers to a natural river channel as
Notes: The term is primarily used in Estonian contexts and may not have a direct, universal English