abyssal zone

noun

Definition of abyssal zone

  1. :  the biogeographic realm consisting of the deep sea, lacking higher plant life because of the absence of light, and occupied chiefly by carnivorous animals that are often blind or have special luminous organs and are structurally adapted to withstand the great pressures of this level

There's more!

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!
Already a subscriber? Log in.

First Known Use of abyssal zone

1852


Seen and Heard

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

Love words? Need even more definitions?

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

Love words? Need even more definitions?

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