center of buoyancy vs centre of buoyancy

center of buoyancy and centre of buoyancy both are nouns.

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

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

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

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

center of buoyancy (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