a. Bot. [f. mod.L. Apiāce-æ, f. apium celery: see -ACEOUS.] Of the N.O. Apiaceæ or Umbelliferæ, containing such plants as celery, anise, hemlock; umbelliferous.
1839. Penny Cycl., XIII. 6/1. The partial umbels of an apiaceous plant.
1853. in Mayne, Exp. Lex.