abyssolithic

From abyss (“deep”) +‎ lithic (“rock like”).

• (US) IPA^(key): /əˌbɪs.əˈlɪθ.ɪk/
• Rhymes: -ɪθɪk

abyssolithic (comparative more abyssolithic, superlative most abyssolithic)

1. Of or pertaining to an abyssolith. [First attested in the mid 20^th century.]
   • 1982, Transactions of the Geological Society of South Africa, volume 85:

     anomaly peaks were the first demonstrations of a very deep abyssolithic structure in that region...