Center of immersion and Center of mass

Center of immersion noun - (physics) the center of mass of the immersed part of ship or other floating object.

Center of mass and center of immersion are semantically related. In some cases you can use "Center of mass" instead a noun phrase "Center of immersion".

Center of mass noun - Point representing the mean position of the matter in a body.

Center of immersion and center of mass are semantically related. Sometimes you can replace phrase "Center of immersion" with "Center of mass", this phrases are similar.