Definition of abyssal hill
- Low abyssal hills (less than 1 kilometer above the surrounding ocean bottom) cover about 80% of the Pacific floor and about half of the Atlantic.
- —M. Grant Gross, Oceanography 5th Edition, 1990
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:
What made you want to look up abyssal hill? Please tell us where you read or heard it (including the quote, if possible).
Winter Words Quiz