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lithogenous

American  
[li-thoj-uh-nuhs] / lɪˈθɒdʒ ə nəs /

adjective

Geology.
  1. of or relating to organisms, as coral, that secrete stony deposits.


lithogenous British  
/ lɪˈθɒdʒɪnəs /

adjective

  1. (of animals, esp certain corals) rock-building

"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 lithogenous

First recorded in 1825–35; litho- + -genous