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Từ điển Oxford Learners Wordfinder Dictionary

line of longitude

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