Definitions

1. adjective

occurring or passing at the time of noon or midday

“The exmeridian sun cast a warm glow over the landscape.”

2. noun

a line or point on the Earth’s surface where the sun crosses at noon

“The ancient civilization aligned their architecture with the exmeridian path of the sun.”

3. noun

a meridian that passes through the point of noon

“The exmeridian meridian was used for navigation purposes by the old sailors.”