[syn: celeriac, celery root]
The Collaborative International Dictionary of English v.0.48:
Celeriac \Ce*le"ri*ac\, n. (Bot.)
   Turnip-rooted celery, a from of celery with a large globular
   root, which is used for food.
   [1913 Webster]
WordNet (r) 3.0 (2006):
celeriac
    n 1: grown for its thickened edible aromatic root [syn:
         celeriac, celery root, knob celery, root celery,
         turnip-rooted celery, Apium graveolens rapaceum]
    2: thickened edible aromatic root of a variety of celery plant
       [syn: celeriac, celery root]