celeriac Meaning, Definition & Usage

  1. noun grown for its thickened edible aromatic root
    Apium graveolens rapaceum; root celery; celery root; knob celery; turnip-rooted celery.
  2. noun thickened edible aromatic root of a variety of celery plant
    celery root.

WordNet

Ce*le"ri*ac noun
Definitions
  1. (Bot.) Turnip-rooted celery, a from of celery with a large globular root, which is used for food.

Webster 1913