UPSTREAM


Meaning of UPSTREAM in English

up ‧ stream /ˌʌpˈstriːm◂/ BrE AmE adverb

along a river, in the opposite direction from the way the water is flowing OPP downstream :

Fish instinctively fight their way upstream against the current.

—upstream adjective

Longman Dictionary of Contemporary English.      Longman - Словарь современного английского языка.