nephology vs meteorology

nephology and meteorology both are nouns.

Word	Noun	Adjective	Verb	Adverb
nephology	Yes	No	No	No
meteorology	Yes	No	No	No

As nouns, meteorology is a hypernym of nephology; that is, meteorology is a word with a broader meaning than nephology:

nephology: the branch of meteorology that studies clouds and cloud formation
meteorology: the earth science dealing with phenomena of the atmosphere (especially weather)

nephology (noun)	meteorology (noun)
the branch of meteorology that studies clouds and cloud formation	the earth science dealing with phenomena of the atmosphere (especially weather)
	predicting what the weather will be