onion

Noun
Synonyms: onion plantAllium cepa

WordNet 3.0

Noun (3)

  1. the bulb of an onion plant
  2. bulbous plant having hollow leaves cultivated worldwide for its rounded edible bulbSynonyms: onion plantAllium cepa
  3. an aromatic flavorful vegetable
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Webster's Dictionary (GCIDE)

Onion \On"ion\, n. [F. ognon, fr. L. unio oneness, unity, a single large pearl, an onion. See One, Union.]

1.(Bot.) A liliaceous plant of the genus Allium (Allium cepa), having a strong-flavored bulb and long hollow leaves; also, its bulbous root, much used as an article of food. The name is often extended to other species of the genus. [1913 Webster]

2.The flavor of an onion[1]. [PJC]

Onion fish (Zool.), the grenadier.

Onion fly (Zool.) a dipterous insect whose larva feeds upon the onion; especially, Anthomyia ceparum and Ortalis flexa.

Welsh onion. (Bot.) See Cibol.

Wild onion (Bot.), a name given to several species of the genus Allium. [1913 Webster]

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