Definition of Horsehead Nebula in English:

Horsehead Nebula

Line breaks: Horse|head Neb¦ula
  • A dust nebula in the shape of a horse’s head, forming a dark silhouette against a bright emission nebula in Orion.

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