Archaean
adjective
of or relating to the highly metamorphosed rocks formed in the early Precambrian era
Showing results for "Archaean"
- a variation of Archean.
Archaean
1 British
/ ɑːˈkiːən /
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
archaean
2
British
/ ɑːˈkɪən /
noun
Vocabulary lists containing archaean
Earth Science - High School
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Geology - High School
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Example Sentences
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Archaean cell walls do not have peptidoglycan, but they may have pseudopeptidoglycan, polysaccharides, glycoproteins, or protein-based cell walls.
From Textbooks ● Jun. 9, 2022
There is geological evidence that Earth’s oceans became salty early during the Archaean, and that at times in the past, they have been at least half again as salty as they are now.
From Textbooks ● Jan. 1, 2015
This "palaeobarometry" approach, revealed at the , will help constrain the models that try to simulate conditions in Archaean times.
From BBC ● Dec. 4, 2012
The team concluded that if the biggest imprints in the Ventersdorp rock were formed by the largest raindrops, air pressure in the Archaean could have been no more than twice what it is today.
From BBC ● Dec. 4, 2012
This Archaean or original rock must necessarily have extended all over the surface of our sphere as it cooled from its molten form and contracted into the earth on which we live.
From The Dawn of Canadian History : A Chronicle of Aboriginal Canada by H. H. (Hugh Hornby) Langton
What is another question you might pose to learn more about the structural features that allow for the capture, storage, and use of free energy by archaean methanogens?
From Textbooks ● Jun. 9, 2022
Do archaean methanogens differ from other Archaea structurally, and if so, in what way?
From Textbooks ● Jun. 9, 2022
The cytoplasm of both bacterial and archaean prokaryotic cells has a high concentration of dissolved solutes.
From Textbooks ● Jun. 9, 2022
Do archaean methanogens differ from other Bacteria structurally, and if so, in what way?
From Textbooks ● Jun. 9, 2022
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.
From Astounding Stories of Super-Science, May, 1930 by Harry Bates
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
