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Definition of seafloor
seafloor
/ˈsiːˌflɔːr/
sea · floor
Plural:seafloors
seafloor Lexical Profile
CEFR
B2
Grade
6
Tier
2
Usage
Top 10k
Syllables
2
seafloor Game Scores & Validity
Scrabble US
Scrabble UK
WWF
Wordle Guess
• noun
1
The solid ground at the bottom of a sea or ocean, encompassing submerged geological features such as continental shelves, abyssal plains, mid-ocean ridges, and deep-sea trenches.
Example
"Marine geologists used sonar technology to map the volcanic ridges rising from the deep seafloor."
Synonyms
View all synonyms for seafloorCite this Entry
Wordmom. (2026). Definition of Seafloor. In Wordmom Dictionary. Retrieved Nov 5, 2026, from https://wordmom.com/dictionary/seafloor