Gegenion

noun

noun ·Rare ·Advanced level

Definitions

Noun
  1. 1
    A counterion: an ion of opposite charge to another in an electrochemical or ion transport system. physical

Synonyms

All synonyms
counterioncounterion

Etymology

From the German gegen (“against”) + ion.

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Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.