centre of immersion vs centre of buoyancy

centre of immersion and centre of buoyancy both are nouns.

Word	Noun	Adjective	Verb	Adverb
centre of immersion	Yes	No	No	No
centre of buoyancy	Yes	No	No	No

As nouns, centre of immersion and centre of buoyancy are synonyms defined as:

centre of immersion and centre of buoyancy: (physics) the center of mass of the immersed part of ship or other floating object

Other synonyms of centre of immersion include center of buoyancy, center of immersion.

centre of immersion (noun)	centre of buoyancy (noun)
(physics) the center of mass of the immersed part of ship or other floating object	(physics) the center of mass of the immersed part of ship or other floating object