spinach . ( Del ár. Hisp. isbiná?[a] , East of the ar. isbana? (do do or isfana?, and this of the Persian espena? ). 1. f. plant hortense, edible, year of the family of the Quenopodiáceas, with shrub stalk, leaves are narrow, radical, sharp and smooth, with reddish petioles, flowers are dioecious, Corolla, and round seeds or cuernecillos, according to the varieties.