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Entry 3 senses · 2 variants Webster, 1913

Megameter

· Me·gam·e·ter · IPA /mɛˈɡɐˌmɪtəɹ/
01 n. An instrument for determining longitude by observation of the stars.
  1. 1.
    An instrument for determining longitude by observation of the stars.(Physics)
  2. 2.
    A micrometer.[R. & Obs.]
02 n. In the metric system, one million meters, or one thousand kilometers.
  1. 1.
    In the metric system, one million meters, or one thousand kilometers.