noun ar·kose \ˈär-ˌkōs, -ˌkōz\

Definition of ARKOSE

:  a sandstone characterized by feldspar fragments that is derived from granite or gneiss which has disintegrated rapidly
ar·ko·sic \(ˌ)är-ˈkō-sik, -zik\ adjective

Origin of ARKOSE

First Known Use: 1829


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July 04, 2015
stringent Hear it
rigorous, strict, or severe
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