antimeridian

English

Etymology

anti- +‎ meridian

Noun

antimeridian (plural antimeridians)

  1. (geography) The reference line at 180° longitude, on the opposite side of earth to the prime meridian.
  2. (geography) A meridian of longitude opposite to any given meridian.
    123° west is the antimeridian of the 57° east meridian

Translations
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