shamrock has definitions from the field of botany
1
[ noun ] (botany) creeping European clover having white to pink flowers and bright green leaves; naturalized in United States; widely grown for forage

Used in print

(Booton Herndon, "From Custer to Korea, The 7th Cavalry"...)

In_the_middle of the party Chandler looked up to see four smiling faces bearing_down upon him , each beaming above the biggest , greenest shamrock he had ever seen .

Related terms

clover

2
[ noun ] (botany) Eurasian plant with heart-shaped trifoliate leaves and white pink- or purple-veined flowers

Related terms

oxalis

3
[ noun ] (botany) clover native to Ireland with yellowish flowers; often considered the true or original shamrock

Related terms

clover

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