Pronunciation: (fen'l),[key] —n. 1. a plant, Foeniculum vulgare, of the parsley family, having feathery leaves and umbels of small, yellow flowers.
2. Also,fen'nel seed".the aromatic fruits of this plant, used in cookery and medicine.
3. any of various more or less similar plants, as Ferula communis(giant fennel), a tall, ornamental plant.