меридиан означава в английски

longitude [longitudes]▼(imaginary line through North Pole and South Pole)
noun
[UK: ˈlɒn.ɡɪ.tjuːd] [US: ˈlɑːndʒ.ə.tuːd]

meridian [meridians]▼(great circle on the Earth’s surface, passing through the geographic poles)
noun
[UK: mə.ˈrɪ.dɪən] [US: mə.ˈrɪ.diən]