Allium ampeloprasum al·liu·mam·peloprasum uncommon noun 1. coarse Old World perennial having a large bulb and tall stalk of greenish purple-tinged flowers; widely naturalized Synonymswild leekLevant garlickurratAllium ampeloprasum Related words Broader terms alliaceous plant WordNet 2.1 (Princeton University). WordNet 2.1 Copyright Princeton University. All rights reserved.