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allium

American  
[al-ee-uhm] / ˈæl i əm /

noun

  1. any bulbous plant belonging to the genus Allium, of the amaryllis family, having an onion odor and flowers in a round cluster, including the onion, leek, shallot, garlic, and chive.

  2. a substance occurring in garlic bulbs that has antibiotic properties.


allium British  
/ ˈælɪəm /

noun

  1. any plant of the genus Allium, such as the onion, garlic, shallot, leek, or chive: family Alliaceae

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Etymology

Origin of allium

1800–10; < New Latin, Latin: garlic

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

For his ramp-themed dinner, Jaranilla put together a five-course tasting menu to showcase the versatility of the allium, in the same family as garlic, leeks and onions.

From The Wall Street Journal May 13, 2026

Onions — and their extended allium family, which includes garlic, leeks, shallots, chives and scallions—are nature’s greatest flavor amplifiers.

From Salon Mar. 19, 2025

But the real magic happens when you embrace the full allium spectrum.

From Salon Mar. 19, 2025

A selection of crocus, narcissus and allium delivers seasonal flower power between February and May.

From Seattle Times Jun. 16, 2023

Alliaceous, al-li-ā′shus, adj. pertaining to, or having the properties of allium or garlic.

From Chambers's Twentieth Century Dictionary (part 1 of 4: A-D) by Various

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