English Explanatory Dictionary

antimeridian

English dictionary entry

Meanings

noun
  1. The reference line at 180° longitude, on the opposite side of earth to the prime meridian.
  2. A meridian of longitude opposite to any given meridian used as a point of reference.

Word forms

antimeridian antimeridians

Etymology

From anti- + meridian.

Synonyms

Greenwich antimeridian
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