counterion

English

Etymology

Etymology tree

Proto-Indo-European *ḱe?

Proto-Indo-European *ḱóm

Proto-Italic *kom

Proto-Italic *kom-

Proto-Indo-European *-teros

Proto-Italic *-teros

Proto-Italic *komterosder.

Proto-Italic *komterād

Latin contrāder.

Old French contre-

Anglo-Norman countre-bor.

Middle English counter-

English counter-

Proto-Indo-European *h₁ey-

Proto-Indo-European *-ti

Proto-Indo-European *h₁éyti

Proto-Hellenic *éimi

Ancient Greek ἰόν (ión)der.

English ion

English counterion

From counter- + ion.

Noun

counterion (plural counterions)

1. (chemistry) Any ion of opposite charge to another in a solution or other electrochemical system

Synonyms

• gegenion

Derived terms

• counterionic

Related terms

• coion
• counteranion
• countercation
• counterionise

Translations

ion of opposite charge

• Finnish: vastaioni
• French: contre-ion m
• German: Gegenion (de) n
• Korean: 상대이온 (sangdaeion)

Anagrams

• neurotonic