stromatolite · noun — A laminated, columnar, rock-like structure constituting a large share of all fossils from 3.5 to 0.5 billion years ago, with some still being formed at present, some or all of which result from the deposit of minerals by microorganisms such as cyanobacteria. It carries an Arena rating of 1548, earned across 2 head-to-head judged battles.
Definition from Wiktionary (CC BY-SA 3.0).
Among words judged in Lexicurio's Arena, stromatolite ranks #46 of 17,195 for Most Exacting Words, #164 of 17,163 for Most Sublime Words, #270 of 17,165 for Most Satisfying to Say, #937 of 17,130 for Most Ponderous Words.
Why “stromatolite” is a great word
A laminated, columnar, sedimentary structure formed by the trapping and binding of sediment by microbial mats, especially cyanobacteria, and constituting a major form of fossil evidence from the Precambrian. From Ancient Greek στρῶμα (strôma, "layer, mattress") and λίθος (líthos, "stone, rock"), borrowed from German Stromatolith. Unlike a thrombolite, with its clotted, chaotic internal fabric, or a living microbial mat from which it is born, a stromatolite is the patient, lithified archive of that life. It is a wafer-thin strata of a column rising from shallow water, each band recording a season of growth and burial; a dome-shaped reef that once breathed oxygen into a primitive atmosphere; the oldest visible signature of biology on Earth. It is the serene and stony proof that the universe began to write its history long before it learned to read.
❧ Essay by Lexicurio’s AI · definition, etymology & citations from published sources
Etymology
From Ancient Greek στρώματα (strṓmata) (plural of στρῶμα (strôma, “layer”)) + λίθος (líthos, “stone, rock”).
noun
- A laminated, columnar, rock-like structure constituting a large share of all fossils from 3.5 to 0.5 billion years ago, with some still being formed at present, some or all of which result from the deposit of minerals by microorganisms such as cyanobacteria.e.g.“Most modern and ancient stromatolites occur in carbonate sediments and sedimentary rocks, but they can form by trapping and binding of any sediment particles.” — 1979, D. G. Lundgren, W. Dean, “Chapter 4: Biogeochemistry of Iron”, in P. A. Trudinger, D. J. Swaine, editors, Biogeochemical Cycling of Mineral-Forming Elements, page 232:
Definitions & examples from Wiktionary (CC BY-SA 3.0).
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