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Meaning of mainstem | Babel Free

Noun CEFR B2

Definitions

The principal watercourse of a river that has multiple streams

Examples

“Piramutaba (Brachyplatystoma vaillantii) make up a second large export fishery and are found almost exclusively in the Amazon River mainstem, whitewater tributaries, and the estuary [30 –32 ].”

CEFR level

B2

Upper Intermediate
This word is part of the CEFR B2 vocabulary — upper intermediate level.

See also

Mainstone Mainstream mainstream consciousness mainstreamer mainstreaming mainstreamism