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Webster 1913 Edition


Shamrock

Sham′rock

,
Noun.
[L.
seamrog
,
seamar
, trefoil, white clover, white honeysuckle; akin to Gael.
seamrag
.]
(Bot.)
A trifoliate plant used as a national emblem by the Irish. The legend is that St. Patrick once plucked a leaf of it for use in illustrating the doctrine of the trinity.
☞ The original plant was probably a kind of wood sorrel (
Oxalis Acetocella
); but now the name is given to the white clover (
Trifolium repens
), and the black medic (
Medicago lupulina
).

Webster 1828 Edition


Shamrock

SHAM'ROCK

,
Noun.
The Irish name for three-leafed grass.

Definition 2021


shamrock

shamrock

English

A shamrock (trefoil leaf).

Noun

shamrock (plural shamrocks)

  1. The trefoil leaf of any small clover, especially Trifolium repens, or such a leaf from a clover-like plant, commonly used as a symbol of Ireland.
    She wore a shamrock in honor of her Irish ancestry.
  2. Any of several small plants, forms of clover, with trefoil leaves, especially Trifolium repens.
    The fields were covered with shamrocks.

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See also