Sinus Meridiani

English

Etymology

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Proper noun

Sinus Meridiani

1. (astronomy) An albedo feature on Mars stretching east-west just south of the planet's equator.
   • 1969 November, Arthur Fisher, “Science Newsfront: Last-minute news and notes to keep you up-to-date”, in Popular Science, volume 195, number 5, page 22:

     These pictures reveal, in the bright region west of the Sinus Meridiani, a totally unexpected Marscape of confused terrain that is like nothing man has seen on Earth, moon, or Mars before.