blue flag

/blu flæg/
IPA guide

Other forms: blue flags

Definitions of blue flag
  1. noun
    a common iris of the eastern United States having blue or blue-violet flowers; root formerly used medicinally
    synonyms: Iris versicolor
    see moresee less
    type of:
    flag, fleur-de-lis, iris, sword lily
    plants with sword-shaped leaves and erect stalks bearing bright-colored flowers composed of three petals and three drooping sepals
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