that point in a floating body at which a vertical line drawn through its center of buoyancy when it is upright meets the vertical line drawn through its center of buoyancy when it is tipped; center of gravity of the part of a floating body that is not submerged: for stability the metacenter must be above the center of gravity
Metacenter. (n.d.). In YourDictionary. Retrieved from https://www.yourdictionary.com/Metacenter
The point where an imaginary vertical line running through the center of buoyancy of a tilted floating body crosses the line that originally passed vertically through the body's center of buoyancy when it was at equilibrium.