line of longitude
English Thesaurus
1. an imaginary great circle on the surface of the earth passing through the north and south poles at right angles to the equator (noun.location)
| hypernym | : | great circle, |
| definition | : | a circular line on the surface of a sphere formed by intersecting it with a plane passing through the center (noun.location) |
| hyponym | : | observer's meridian, |
| definition | : | a meridian that passes through the observer's zenith (noun.location) |
| hyponym | : | prime meridian, |
| definition | : | meridian at zero degree longitude from which east and west are reckoned (usually the Greenwich longitude in England) (noun.location) |
| hyponym | : | magnetic meridian, |
| definition | : | an imaginary line passing through both magnetic poles of the Earth (noun.location) |
| derivation | : | meridional, |
| definition | : | of or relating to a meridian (adj.pert) |
| derivation | : | meridional, |
| definition | : | of or relating to a meridian (adj.pert) |
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