celeriac vs turnip-rooted celery

celeriac and turnip-rooted celery both are nouns.

Word	Noun	Adjective	Verb	Adverb
celeriac	Yes	No	No	No
turnip-rooted celery	Yes	No	No	No

As nouns, celeriac and turnip-rooted celery are synonyms defined as:

celeriac and turnip-rooted celery: grown for its thickened edible aromatic root

Other synonyms of celeriac include Apium graveolens rapaceum, celery root, knob celery, root celery.

celeriac (noun)	turnip-rooted celery (noun)
thickened edible aromatic root of a variety of celery plant	grown for its thickened edible aromatic root
grown for its thickened edible aromatic root