Interstellar-comet meaning

(astronomy, planetology) A comet (exocomet) located in interstellar space, and not gravitationally bound to a star.
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Origin of interstellar-comet

  • Constructed from Latin: inter- +‎ stellar and from Old French comete (French: comète), from Latin cometes, from Ancient Greek κομήτης (komētēs, “longhaired”), referring to the tail of a comet, from κόμη (komē, “hair”).
    From Wiktionary