astronautics vs dynamic balance

astronautics and dynamic balance both are nouns.

Word	Noun	Adjective	Verb	Adverb
astronautics	Yes	No	No	No
dynamic balance	Yes	No	No	No

astronautics (noun)	dynamic balance (noun)
the theory and practice of navigation through air or space	(aeronautics) the state of equilibrium in which centrifugal forces due to a rotating mass (e.g., a propeller) do not produce force in the shaft and so vibration is reduced