cocozelle vs vegetable marrow

cocozelle and vegetable marrow both are nouns.

Word	Noun	Adjective	Verb	Adverb
cocozelle	Yes	No	No	No
vegetable marrow	Yes	No	No	No

As nouns, vegetable marrow is a hypernym of cocozelle; that is, vegetable marrow is a word with a broader meaning than cocozelle:

cocozelle: squash plant having dark green fruit with skin mottled with light green or yellow
vegetable marrow: any of various squash plants grown for their elongated fruit with smooth dark green skin and whitish flesh

Other hypernyms of cocozelle include marrow, marrow squash.

cocozelle (noun)	vegetable marrow (noun)
squash resembling zucchini	large elongated squash with creamy to deep green skins
squash plant having dark green fruit with skin mottled with light green or yellow	any of various squash plants grown for their elongated fruit with smooth dark green skin and whitish flesh