Definition of slickenside in English:

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Pronunciation: /ˈslɪk(ə)nsʌɪd/


(usually slickensides) Geology
A polished and striated rock surface that results from friction along a fault or bedding plane.
Example sentences
  • Brittle deformation is evident from a number of fault planes showing quartz slickensides consistently dipping at c.40 deg to the southeast.
  • Main normal-throw components are documented both by steps on the fault slickensides and by downthrown offsets of basaltic layers.
  • There is limited evidence from slickensides for dip-slip movement along this fault.


Mid 18th century: from a dialect variant of the adjective slick + side.

For editors and proofreaders

Line breaks: slicken|side

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