meridian has definitions from the fields of geography,government
1
[ adjective ] of or happening at noon

Examples

"meridian hour"

Related terms

noon

2
[ noun ] (government,geography) a town in eastern Mississippi

Related terms

town Mississippi

3
[ noun ] (geography) an imaginary great circle on the surface of the earth passing through the north and south poles at right angles to the equator

Examples

"all points on the same meridian have the same longitude"

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