单词	arkose
释义	arkose noun ar·​kose ˈär-ˌkōs  -ˌkōz : a sandstone characterized by feldspar fragments that is derived from granite or gneiss which has disintegrated rapidly arkosic (ˌ)är-ˈkō-sik  -zik adjective Example Sentences Recent Examples on the Web Its heavy concentration of feldspar grains — known as arkose — means the rock is inevitably prone to chemical decay. Washington Post, 2 Apr. 2021 Word History Etymology French First Known Use 1829, in the meaning defined above
随便看	orthopedics orthopedist orthopedists orthoperiodic acid orthophosphate orthophosphates orthophosphoric acid orthopinacoid Orthopoda orthopods orthopraxes orthopraxies orthoprisms orthopristes orthopristises orthopristisses orthopsychiatric orthopsychiatries orthopsychiatrist orthopsychiatrists orthopsychiatry orthopter orthoptera orthopterae orthopteral

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