continental slope vs sea floor

continental slope and sea floor both are nouns.

Word	Noun	Adjective	Verb	Adverb
continental slope	Yes	No	No	No
sea floor	Yes	No	No	No

As nouns, sea floor is a hypernym of continental slope; that is, sea floor is a word with a broader meaning than continental slope:

continental slope: the steep descent of the seabed from the continental shelf to the abyssal zone
sea floor: the bottom of a sea or ocean

Other hypernyms of continental slope include Davy Jones's locker, Davy Jones, ocean bottom, ocean floor, sea bottom, seabed.

continental slope (noun)	sea floor (noun)
the steep descent of the seabed from the continental shelf to the abyssal zone	the bottom of a sea or ocean