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slickenside

noun
slick·​en·​side | \ ˈsli-kən-ˌsīd How to pronounce slickenside (audio) \

Definition of slickenside

: a smooth often striated surface produced on rock by movement along a fault or a subsidiary fracture —usually used in plural

Examples of slickenside in a Sentence

Recent Examples on the Web

 The 150-foot-long and 75-foot-tall surface is one of the largest chert slickensides exposures in California. — Thomas Graham, SFChronicle.com, "Walking these seven hills of San Francisco a peak experience," 28 June 2018

First Known Use of slickenside

1822, in the meaning defined above

History and Etymology for slickenside

English dialect slicken smooth (from slick entry 1) + English side

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