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Ark.
ark
Ark of the Covenant
Arkadelphia
Arkansas
Arkansas Post National Memorial
Arkansawyer
Arkhangelsk
arkose
Arles
Arlington
Arlington Heights
ARM
arm (1)
arm (2)
arm candy
arm’s-length
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arkose
ark·ose [ rk ss, rkz ]


noun 
Definition:
 
sedimentary rock: a coarse-grained sedimentary rock rich in feldspar and quartz
[Mid-19th century. < French, probably < Greek arkhaios "ancient"]
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