n. 1. a beet lacking a swollen root; it is grown as a vegetable for its edible leaves and stalks. Syn. -- chard, Swiss chard, spinach beet, leaf beet, chard plant, Beta vulgaris cicla. [ WordNet 1.5 ]
2. a plant with long succulent whitish stalks with large green leaves. Syn. -- chard, Swiss chard, spinach beet, leaf beet. [ WordNet 1.5 ]
{ } n. [ OF. espinache, espinoche, F. épinard; cf. F. spinace, Sp. espinaca; all fr. Ar. isfānāj, isfināj, aspanākh, probably of Persian origin. ] (Bot.) A common pot herb (Spinacia oleracea) belonging to the Goosefoot family. [ 1913 Webster ]
Mountain spinach. See Garden orache, under Orache. -- New Zealand spinach (Bot.), a coarse herb (Tetragonia expansa), a poor substitute for spinach. [ 1913 Webster ]
☞ Various other pot herbs are locally called spinach. [ 1913 Webster ]