noun Date: 1854 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
ROCK TRIPE
Meaning of ROCK TRIPE in English
Merriam Webster. Explanatory English dictionary Merriam Webster. Толковый словарь английского языка Мерриам-Уэбстер. 2012