of a celestial body
:to reach its highest altitude
:to be directly overhead
- During the summer solstice, the sun culminates over the Tropic of Cancer in the northern hemisphere.
:to rise to or form a summit
- … enormous waves culminated and fell with the report of thunder.
- —Frederick Marryat
:to reach the highest or a climactic or decisive point
- Her long acting career culminated when she won the Oscar.
:to bring to a head or to the highest point
- The contract culminated weeks of negotiations.