sea floor vs seabed

sea floor and seabed both are nouns.

Word	Noun	Adjective	Verb	Adverb
sea floor	Yes	No	No	No
seabed	Yes	No	No	No

As nouns, sea floor and seabed are synonyms defined as:

Other synonyms of sea floor include Davy Jones's locker, Davy Jones, ocean bottom, ocean floor, sea bottom.

sea floor (noun)	seabed (noun)
the bottom of a sea or ocean	the bottom of a sea or ocean