Bible Dictionaries
Shamrock

Webster's Dictionary

(n.) 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.

Bibliography Information
Webster, Noah. Entry for 'Shamrock'. Noah Webster's American Dictionary. https://www.studylight.org/​dictionaries/​eng/​web/​s/shamrock.html. 1828.