wild celery wild·ce·lery uncommon noun 1. herb of Europe and temperate Asia Synonymswild celeryApium graveolens 2. submerged aquatic plant with ribbonlike leaves; Old World and Australia Synonymstape grasseelgrasswild celeryVallisneria spiralis Related words Broader terms aquatic plantherb Parts VallisneriaApium WordNet 2.1 (Princeton University). WordNet 2.1 Copyright Princeton University. All rights reserved.