noun
an imaginary great circle on the surface of the earth passing through the north and south poles at right angles to the equator
-
all points on the same meridian have the same longitude
• Syn: ↑meridian
• Derivationally related forms: ↑meridional (for: ↑meridian)
• Hypernyms: ↑great circle
• Hyponyms: ↑observer's meridian, ↑prime meridian, ↑magnetic meridian
• Instance Hyponyms: ↑dateline, ↑date line, ↑International Date Line
Useful english dictionary. 2012.