metacentric vs metacenter

metacentric is not a noun while metacenter is a noun.

Word	Noun	Adjective	Verb	Adverb
metacentric	No	Yes	No	No
metacenter	Yes	No	No	No

metacentric (noun)	metacenter (noun)
	(shipbuilding) the point of intersection between two vertical lines, one line through the center of buoyancy of the hull of a ship in equilibrium and the other line through the center of buoyancy of the hull when the ship is inclined to one side; the distance of this intersection above the center of gravity is an indication of the stability of the ship

metacentric (adjective)	metacenter (adjective)
having two equal arms because of the median position of the centromere
of or relating to the metacenter