We found one dictionary that defines the word Extraterrestrial hypothesis:

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1. Extraterrestrial hypothesis: Wikipedia, the Free Encyclopedia

▸ Words similar to Extraterrestrial hypothesis ▸ Usage examples for Extraterrestrial hypothesis ▸ Idioms related to Extraterrestrial hypothesis ▸ Wikipedia articles (New!) ▸ Words that often appear near Extraterrestrial hypothesis ▸ Rhymes of Extraterrestrial hypothesis ▸ Invented words related to Extraterrestrial hypothesis