capitalized: a genus of bulbous herbs (as an onion, garlic, or leek) of the lily family distinguished by a characteristic odor, sheathing, mostly basal leaves, and clusters of usually white, blue, purple, pink, or red flowers
a: a plant of the genus Alliumb: the bulb of garlic formerly used in medicine especially as an expectorant and rubefacient
Any plant of a large genus (Allium) of bulbous, onion- or garlic-scented herbs of the Alliaceae family, including the onion, garlic, chive, leek, and shallot. Allium species are found in most regions of the world except the tropics and New Zealand and Australia. Some are cultivated as ornamental border plants.