 archaean |
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| 1. | [ adjective ] (geology) used of the earliest known rocks | |
| Synonyms: | archean | |
| Related terms: | geology early | |
| Similar spelling: |
archangel archean archangelic Arisaema areca_nut Archambeau archine archenteron archean_era archean_eon Archambault archness arching |
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