Noun shamrock has 3 senses
  1. white clover, dutch clover, shamrock, Trifolium repens - creeping European clover having white to pink flowers and bright green leaves; naturalized in United States; widely grown for forage
    --1 is a kind of clover, trefoil
  2. common wood sorrel, cuckoo bread, shamrock, Oxalis acetosella - Eurasian plant with heart-shaped trifoliate leaves and white pink- or purple-veined flowers
    --2 is a kind of oxalis, sorrel, wood sorrel
  3. hop clover, shamrock, lesser yellow trefoil, Trifolium dubium - clover native to Ireland with yellowish flowers; often considered the true or original shamrock
    --3 is a kind of clover, trefoil
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