1. (noun)spinach, spinach plant, prickly-seeded spinach, Spinacia oleracea southwestern Asian plant widely cultivated for its succulent edible dark green leaves Synonyms: prickly-seeded spinach, spinach, spinachplant
2. (noun)spinach dark green leaves; eaten cooked or raw in salads Synonyms: prickly-seeded spinach, spinachplant