Meaning | An imaginary great circle on the surface of the earth passing through the north and south poles at right angles to the equator. |
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Synonym | meridian |
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Instances | dateline, date line, International Date Line | An imaginary line on the surface of the earth following (approximately) the 180th meridian |
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Narrower | magnetic meridian | An imaginary line passing through both magnetic poles of the Earth |
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observer's meridian | A meridian that passes through the observer's zenith |
prime meridian | meridian at zero degree longitude from which east and west are reckoned (usually the Greenwich longitude in England) |
Broader | great circle | A circular line on the surface of a sphere formed by intersecting it with a plane passing through the center |
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Spanish | meridiano |
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Catalan | meridià |
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