metastability vs natural philosophy

metastability and natural philosophy both are nouns.

Word	Noun	Adjective	Verb	Adverb
metastability	Yes	No	No	No
natural philosophy	Yes	No	No	No

metastability (noun)	natural philosophy (noun)
the quality of a physical system that persists in its existing equilibrium when undisturbed (or only slightly disturbed) but able to pass to a more stable equilibrium when sufficiently disturbed	the science of matter and energy and their interactions