ARCHAEAN Definition & Meaning

archaean

/ ɑːˈ��ɪə�� /

noun

any member of the Archaea , a domain of prokaryotic microorganisms, distinguished from bacteria on molecular phylogenetic grounds and often found in hostile environments, such as volcanic vents and hot springs

Archaean

/ ɑːˈ�쾱ːə�� /

adjective

of or relating to the highly metamorphosed rocks formed in the early Precambrian era
the earlier of two divisions of the Precambrian era, during which the earliest forms of life are assumed to have appeared

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Example Sentences

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These microbes represent many limbs of the archaean evolutionary tree, indicating that salt-loving adaptations emerged many times.

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More, there were even traces of archaean deposits around the borders of the pool, whose depth, in the center, was ascertained to be 164 feet.

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The Philadelphians took to the homeward trail with backward glances and something of regret lest the archaean foundations of that mountain of ore might shift over night.

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Learn from their own words what these geological masters say of these wonderful five hundred feet thick remnants of twelve thousand feet of strata that were once piled here above the archaean rocks.

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Clark turned to his office, still contemplating the dignity of his visitor, the stark simplicity of this archaean aristocrat.

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archaean

noun

adjective

Example Sentences