desert varnish

noun

Definition of desert varnish

: a dark coating which is found on rocks after long exposure in desert regions and whose color is due to iron and manganese oxides

First Known Use of desert varnish

circa 1898, in the meaning defined above

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The first known use of desert varnish was circa 1898

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Dictionary Entries Near desert varnish

desert trumpet flower

desert varnish

desertward

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Cite this Entry

“Desert varnish.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/desert%20varnish. Accessed 2 Dec. 2021.

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Britannica.com: Encyclopedia article about desert varnish

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