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Webster 1913 Edition

Onion

On′ion

,
Noun.
[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.
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
.

Webster 1828 Edition

Onion

ONION

,
Noun.
un'yun.
A plant of the genus Allium; and particularly, its bulbous root, much used as an article of food.

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