— horizon; in astronomy, the boundary of a black hole

Let's find possible answers to "— horizon; in astronomy, the boundary of a black hole" crossword clue. First of all, we will look for a few extra hints for this entry: — horizon; in astronomy, the boundary of a black hole. Finally, we will solve this crossword puzzle clue and get the correct word. We have 1 possible solution for this clue in our database.