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1. A plant having compound leaves with three small leaflets, especially a clover or wood sorrel.
2. The compound leaf of one of these plants.
3. A representation of one of these plants or leaves, used as a national emblem of Ireland.
[Irish Gaelic seamróg, diminutive of seamar, clover, from Middle Irish semar; probably akin to Old Norse smári, clover, and of non-Indo-European substrate origin.]
(Plants) a plant having leaves divided into three leaflets, variously identified as the wood sorrel, red clover, white clover, and black medick: the national emblem of Ireland
[C16: from Irish Gaelic seamrōg, diminutive of seamar clover]
any of several trifoliate plants, as the wood sorrel, Oxalis acetosella, or a small, pink-flowered clover, Trifolium repens minus, but esp. Trifolium procumbens, a small, yellow-flowered clover: the national emblem of Ireland.
[1565–75; < Irish seamróg]
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|Noun||1.||shamrock - creeping European clover having white to pink flowers and bright green leaves; naturalized in United States; widely grown for forage|
|2.||shamrock - Eurasian plant with heart-shaped trifoliate leaves and white purple-veined flowers|
|3.||shamrock - clover native to Ireland with yellowish flowers; often considered the true or original shamrock|