Definition of mourning cloak in English:

mourning cloak

Syllabification: mourn·ing cloak

noun

North American
  • A migratory butterfly with deep purple yellow-bordered wings.
    • Nymphalis antiopa, subfamily Nymphalinae, family Nymphalidae
    More example sentences
    • I believe they were mostly Harris's checkerspots and wood nymphs, or the like, but there were also the occasional monarchs, swallowtails, and mourning cloaks.
    • Doug talks about some local species of butterflies, ones with cool names like mourning cloaks, commas, and question marks.
    • Butterflies including the tiger swallowtail and mourning cloak rely on the flowers of the red maple for their survival and reproduction.

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Word of the day coloratura
Pronunciation: ˌkələrəˈto͝orə
noun
elaborate ornamentation of a vocal melody