antimeridian

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.
 * 1)  A meridian of longitude opposite to any given meridian used as a point of reference.
 * 1)  A meridian of longitude opposite to any given meridian used as a point of reference.

Translations

 * Catalan: antimeridià
 * French:
 * German: Antimeridian
 * Portuguese: antimeridiano
 * Spanish: antimeridiano
 * Zazaki: antimeridyen

Etymology
.