noun🔗ShareA current that flows against the prevailing one."The salmon struggled upstream, fighting the powerful countercurrent of the river's flow. "environmentoceandirectiongeographynatureChat with AIVocabulary GamePractice Reading
adjective🔗ShareRunning in an opposite direction."The fish swam against the countercurrent flow of the river. "directionphysiologybiologyecologynatureChat with AIVocabulary GamePractice Reading
