rock tripe
noun
: any of various dark leathery umbilicate foliose lichens (as of the genus Umbilicaria) that are widely distributed on rocks in boreal and alpine areas and are sometimes used as food
Examples of rock tripe in a Sentence
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Pausing for a water break before beginning his descent, Menke ran his hand over another boulder and broke off a piece of crusty rock tripe, or lichen.
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Ben McGrath, The New Yorker, 28 Nov. 2022
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Ben McGrath, The New Yorker, 28 Nov. 2022
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“Rock tripe.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/rock%20tripe. Accessed 30 Jun. 2025.
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