mainstem

Noun

Meaning

mainstem (plural mainstems)

The principal watercourse of a river that has multiple streams

Source: en.wiktionary.org

Examples

Evaporation from reservoirs significantly reduces the river's runoff, causing an annual loss of over convert from mainstem reservoirs alone. Source: Internet

It includes the mainstem Columbia below the Snake River and tributaries such as the Salmon, John Day, Deschutes, and lower Snake Rivers. Source: Internet

Close letter words and terms

mainspring mainstage mainstay Mainstone mainstream mainstream ages