verb, -nat⋅ed, -nat⋅ing.| 1. | to reach the highest point, summit, or highest development (usually fol. by in). |
| 2. | to end or arrive at a final stage (usually fol. by in): The argument culminated in a fistfight. |
| 3. | to rise to or form an apex; terminate (usually fol. by in): The tower culminates in a tall spire. |
| 4. | Astronomy. (of a celestial body) to be on the meridian, or reach the highest or the lowest altitude. |
| 5. | to bring to a close; complete; climax: A rock song culminates the performance. |
