meridian

Từ điển Oxford Advanced Learner 8th

me·rid·ian [meridian meridians] BrE [məˈrɪdiən] NAmE [məˈrɪdiən] noun
one of the lines that is drawn from the North Pole to the South Pole on a map of the world

Word Origin:
late Middle English: from Old French meridien, from Latin meridianum (neuter, used as a noun) ‘noon’, from medius ‘middle’ dies ‘day’.

• Từ đồng nghĩa / Synonyms:
  prime, line of longitude, Meridian