Definition of caprock
: cap 2a
Recent Examples of caprock from the Web
Wind or water then beats alcoves and cracks in the lower layers of the outcropping, eventually forming a hole below the sturdy caprock—a process that can take millions of years.
Natural arches typically form where a layer of hard caprock lies on top of a softer stone, like limestone.
These example sentences are selected automatically from various online news sources to reflect current usage of the word 'caprock.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.
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