Greenwich antimeridian

noun

Synonym of antimeridian (“the reference line at 180° longitude, on the opposite side of earth to the prime meridian”)

Similar
antimeridian
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Meanings

nounGreenwich antimeridian (uncountable)
  1. uncountablegeographySynonym of antimeridian (“the reference line at 180° longitude, on the opposite side of earth to the prime meridian”)

    Synonyms: antimeridian

Synonyms & antonyms

nounSynonym of antimeridian (“the reference line at 180° longitude, on the opposite side of earth to the prime meridian”)

Similar
antimeridian
Also see
antimeridian

Origin

Named as such because the prime meridian was established along Greenwich, England.

Full word history & related roots →
Cite this entry
APA

Greenwich antimeridian. (n.d.). In WatkinsX Dictionary. Retrieved November 5, 2026, from https://dictionary.watkinsx.com/word/Greenwich%20antimeridian

MLA

“Greenwich antimeridian.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/Greenwich%20antimeridian. Accessed November 5, 2026.

Chicago

WatkinsX Dictionary, s.v. “Greenwich antimeridian,” accessed November 5, 2026, https://dictionary.watkinsx.com/word/Greenwich%20antimeridian.

Source: Greenwich antimeridian on Wiktionary, CC BY-SA 4.0.