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endolithic

American  
[en-doh-lith-ik] / ˌɛn doʊˈlɪθ ɪk /

adjective

  1. living embedded in the surface of rocks, as certain lichens.

endolithic British  
/ ˌɛndəʊˈlɪθɪk /

adjective

  1. (of organisms, such as algae) growing inside rock

"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

Etymology

Origin of endolithic

First recorded in 1885–90; endo- + -lithic

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.