Langimage
English

arkosic

|ar-ko-sic|

C2

🇺🇸

/ɑrˈkoʊsɪk/

🇬🇧

/ɑːˈkɒsɪk/

feldspar-rich sandstone

Etymology
Etymology Information

'arkosic' originates from French, specifically the word 'arkose', where 'arkose' referred to a coarse-grained sandstone rich in feldspar.

Historical Evolution

'arkosic' was formed in English by adding the adjectival suffix '-ic' to 'arkose' (itself borrowed from French 'arkose' and German 'Arkose'), producing the adjective meaning 'of or pertaining to arkose'.

Meaning Changes

Initially, it meant 'pertaining to or of the nature of arkose'; over time it has retained this geological meaning of 'feldspar-rich (sandstone)'.

Meanings by Part of Speech

Adjective 1

containing, composed of, or relating to arkose; having a high proportion of feldspar (apparent in certain sandstones).

The arkosic sandstone contained abundant feldspar grains.

Synonyms

feldspathicarkose-bearing

Antonyms

quartzosesiliceous

Last updated: 2025/10/15 15:43