agatizev.
/ˈaɡətʌɪz/, U.S. /ˈæɡəˌtaɪz/ Geology. Now rare.
transitive. To convert into agate or a form containing agate. Usually in passive.
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1638 H. Wotton Let. 5 Dec. in Reliquiæ Wottonianæ (1672) 476 My servant Nicolas and I hope to send you some good Flints to be Agatized by your miraculous invention.
1791 W. Nicholson tr. J. A. C. Chaptal Elements Chem. II. 127 The sides of geodes which are agatized..appear to me conclusive in favour of this doctrine.
1826 H. M. Williams tr. A. von Humboldt Personal Narr. Trav. VI. 623 Limestone (jurassic) with nummulites partly agatized.
1865 Amer. Jrnl. Sci. 90 7 Here the wood contained in the gravel beds is beautifully agatised, or converted into semi-opal.
1972 R. Webster Gems (new ed.) x. 186 Turritella agate, often used for ornamental purposes, consists of shells of the turritella which have been agatized.
2007 K. Johnson Cruisin' Fossil Freeway xiii. 154/1 Uranium was not the only mineral to precipitate in the bones and wood: often fossils were agatized with a beautiful red silica.
This entry has been updated (OED Third Edition, September 2012; most recently modified version published online December 2021).
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