any lichen of the genus Umbilicaria.
- Also called tripe-de-roche.
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How to use rock tripe in a sentence
The stone was mostly covered by ragged, bluish-green rock-tripe in partly overlapping sheets.Nightmare Planet | Murray Leinster
There was one cable Burl had missed, hidden by rock-tripe and mould in a depressed part of the cliff-top.The Forgotten Planet | Murray Leinster
The stone was mostly covered by bluish-green rock-tripe in partly overlapping sheets.The Forgotten Planet | Murray Leinster
We used to eat a kind of moss called rock-tripe, sweetened bark, and May-apples, that tasted of the peach and the raspberry.Atala | Franois Auguste de Chateaubriand
On reaching the rock, they saw what Norman had meant by the words tripe de roche (rock-tripe).The Young Voyageurs | Mayne Reid
British Dictionary definitions for rock tripe
Canadian any of various edible lichens, esp of the genus Umbilicaria, that grow on rocks and are used in the North as a survival food
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012