Definition of sandstone noun from the Oxford Advanced Learner's Dictionary

 

sandstone

 noun
noun
BrE BrE//ˈsændstəʊn//
 
; NAmE NAmE//ˈsændstoʊn//
 
[uncountable]
 
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a type of stone that is formed of grains of sand tightly pressed together, used in building
See the Oxford Advanced American Dictionary entry: sandstone