Entry 2 senses · 2 variants Webster, 1913 Countercurrent /(koun"t?r-k?r`-rent)/ · Coun·ter·cur·rent · IPA a. n. 01 a. Running in an opposite direction. 1. Running in an opposite direction. 02 n. A current running in an opposite direction to the main current. 1. A current running in an opposite direction to the main current.