rock fault
noun
A fault in a rock formation; (Mining ) a body of sandstone or other rock interrupting a coal seam.
Origin
Mid 19th century.
- apple-shaped
- apple slump
- apple snail
- apple snow
- apple-squire
- apples to apples
- apples to oranges
- apple strudel
- apple sucker
- applet
- appletini
- Appleton layer
- Appleton, Sir Edward Victor
- apple tree
- apple-tree borer
- apple turnover
- Apple Valley
- apple water
- apple-wife
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- apple-woman
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- appley
- apple-yellow
- appliable