Definitions

1. noun

The point on a ship or boat where the action of the wind or waves is most effective, or the point where the hull of a ship is twisted or inclined, especially in relation to its center of buoyancy.

“The metacenter of the sailboat helped the captain to optimize its sailing performance.”

2. noun

The point of inflection of a curve, such as a graph or a sail.

“In mathematics, the metacenter is the point where the curve changes direction.”