abys·​so·​lith | \ əˈbisəˌlith \
plural -s

Definition of abyssolith

: a deep-seated igneous body lacking a floor of crystalline rock

Love words?

You must — there are over 200,000 words in our free online dictionary, but you are looking for one that’s only in the Merriam-Webster Unabridged Dictionary.

Start your free trial today and get unlimited access to America's largest dictionary, with:

  • More than 250,000 words that aren't in our free dictionary
  • Expanded definitions, etymologies, and usage notes
  • Advanced search features
  • Ad free!

Other Words from abyssolith

abyssolithic \ ⸗¦⸗⸗¦⸗ik \ adjective

First Known Use of abyssolith

1913, in the meaning defined above

History and Etymology for abyssolith

abyss + -o- + -lith

Keep scrolling for more

Learn More about abyssolith

Time Traveler for abyssolith

Time Traveler

The first known use of abyssolith was in 1913

See more words from the same year

Statistics for abyssolith

Cite this Entry

“Abyssolith.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/abyssolith. Accessed 26 Nov. 2020.

Comments on abyssolith

What made you want to look up abyssolith? Please tell us where you read or heard it (including the quote, if possible).


Test Your Vocabulary

A Thanksgiving Word Quiz

  • a traditional thanksgiving dinner
  • November comes from a word for which of the following numbers?
Spell It

Can you spell these 10 commonly misspelled words?

Bee Cubed

Test Your Knowledge - and learn some interesting things along the way.

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!