Standard Lemma guide

Archaean

adj · name · noun · 6 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.

  • Received-Pronunciation: /ɑːˈkiːən/
  • Southern-England: Recorded audio is listed in the source snapshot.
  • General-American: /ɑɹˈkiːən/
  • rhymes with -iən

1

adj

Meaning 1

Of or relating to Arche, the Muse of beginnings in Greek mythology.

Definition source: English Wiktionary via Wiktextract

Usage: not-comparable

Topics: human-sciences, mysticism, mythology, philosophy, sciences

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

2

adj

Meaning 2

Of, or relating to the geologic eon from about 4,031 to 2,500 million years ago; comprises the Eoarchean, Paleoarchean, Mesoarchean and Neoarchean eras; marked by an atmosphere with little oxygen, the formation of the first continents and oceans and the emergence of simple life.

Definition source: English Wiktionary via Wiktextract

Usage: not-comparable

Topics: geography, geology, natural-sciences

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

3

adj

Meaning 3

Of or relating to the irregular Jovian moon named for Arche.

Definition source: English Wiktionary via Wiktextract

Usage: not-comparable

Qualifier: "Archean" only

Topics: astronomy, natural-sciences

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

4

name

Meaning 4

The eon from 2,500 Ma to 4,000 Ma.

Definition source: English Wiktionary via Wiktextract

Topics: geography, geology, natural-sciences

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

5

noun

Meaning 5

Any organism of the domain Archaea.

Definition source: English Wiktionary via Wiktextract

Topics: biology, natural-sciences

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

6

adjective satellite

Meaning 6

of or relating to the earliest known rocks formed during the Precambrian Eon

Definition source: Princeton WordNet 3.0

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: archean

Antonyms: none provided

History

Etymology

From Ancient Greek ἀρχαῖος (arkhaîos, “ancient”) (likely via Latin archaeus) + -an.

Archaea + -n

Across languages

Translations

33 source translations are retained for this English entry.

  • Catalan: arqueà — of eon from 3,800 to 2,500 million years ago
  • Chinese Mandarin: 太古代的 (Tàigǔdài de) — of eon from 3,800 to 2,500 million years ago
  • Danish: arkeisk — of eon from 3,800 to 2,500 million years ago
  • Finnish: arkeeinen — of eon from 3,800 to 2,500 million years ago
  • French: archéen — of eon from 3,800 to 2,500 million years ago
  • Greek: αρχαιοζωικός (archaiozoïkós) — of eon from 3,800 to 2,500 million years ago
  • Irish: Aircéach — of eon from 3,800 to 2,500 million years ago
  • Italian: archeano — of eon from 3,800 to 2,500 million years ago
  • Kazakh: архей (arxei) — of eon from 3,800 to 2,500 million years ago
  • Norwegian Bokmål: arkeisk — of eon from 3,800 to 2,500 million years ago
  • Norwegian Nynorsk: arkeisk — of eon from 3,800 to 2,500 million years ago
  • Portuguese: arqueano — of eon from 3,800 to 2,500 million years ago
  • Russian: архе́йский (arxéjskij) — of eon from 3,800 to 2,500 million years ago
  • Spanish: arcaico — of eon from 3,800 to 2,500 million years ago
  • Swedish: arkeisk — of eon from 3,800 to 2,500 million years ago
  • Catalan: arqueà — Archaean eon
  • Chinese Mandarin: 太古代 (Tàigǔdài) — Archaean eon
  • Czech: prahory — Archaean eon
  • Czech: archaikum — Archaean eon
  • Dutch: archeïcum — Archaean eon
  • Dutch: archaïcum — Archaean eon
  • Estonian: arhaikum — Archaean eon
  • Estonian: ürgaegkond — Archaean eon
  • Estonian: ürgeoon — Archaean eon
  • Finnish: arkeeinen aioni — Archaean eon
  • French: Archéen — Archaean eon
  • Greek: Αρχαιοζωικός (Archaiozoïkós) — Archaean eon
  • Hungarian: archaikum — Archaean eon
  • Polish: archaik — Archaean eon
  • Portuguese: Arqueano — Archaean eon
  • Russian: архе́й (arxéj) — Archaean eon
  • Spanish: Arcaico — Archaean eon
  • Swedish: arkeikum — Archaean eon