Standard Lemma guide

chelation

noun · 4 senses · updated from the 2026-07-25 local source snapshot

Definitions and examples are grouped by meaning. Pronunciation, history, word forms, translations, descendants, synonyms, antonyms, derived terms, and related words appear whenever the source provides them.

Sound

Pronunciation

Each Play button uses your device's default local English voice, or a natural local fallback. The selected voice name appears after playback. This is synthesized speech, not a source recording.

  • /kiːˈleɪʃən/
  • /kɪˈleɪʃən/
  • US: Recorded audio is listed in the source snapshot.

1

noun

Meaning 1

The formation of a polydentate chelate compound from a metal salt.

Definition source: English Wiktionary via Wiktextract

Usage: countable, uncountable

Topics: chemistry, natural-sciences, physical-sciences

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

2

noun

Meaning 2

The use of this process to remove metal ions from solution, especially to counter poisoning by heavy metals.

Definition source: English Wiktionary via Wiktextract

Usage: countable, uncountable

Topics: medicine, sciences

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

3

noun

Meaning 3

the process of forming a ring by forming one or more hydrogen bonds

Definition source: Princeton WordNet 3.0

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

Broader terms: chemical process, chemical change, chemical action

4

noun

Meaning 4

(medicine) the process of removing a heavy metal from the bloodstream by means of a chelate as in treating lead or mercury poisoning

Definition source: Princeton WordNet 3.0

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

Broader terms: process, physical process

History

Etymology

Etymology tree English chelate Proto-Indo-European *-tis Proto-Indo-European *-Hō Proto-Indo-European *-tiHō Proto-Italic *-tiō Latin -tiō Latin -ātiōlbor. Old French -ationbor. Middle English -acioun English -ation English -ion English chelation From chelate + -ion.

Across languages

Translations

11 source translations are retained for this English entry.

  • Catalan: quelació — formation of a polydentate chelate compound from a metal salt
  • Czech: chelatace — formation of a polydentate chelate compound from a metal salt
  • Dutch: chelatie — formation of a polydentate chelate compound from a metal salt
  • French: chélation — formation of a polydentate chelate compound from a metal salt
  • Indonesian: kelasi — formation of a polydentate chelate compound from a metal salt
  • Indonesian: pengkelatan — formation of a polydentate chelate compound from a metal salt
  • Indonesian: penyepitan — formation of a polydentate chelate compound from a metal salt
  • Italian: chelazione — formation of a polydentate chelate compound from a metal salt
  • Malay: pengkelatan — formation of a polydentate chelate compound from a metal salt
  • Portuguese: quelação — formation of a polydentate chelate compound from a metal salt
  • Spanish: quelación — formation of a polydentate chelate compound from a metal salt