genetics vs genomics

genetics and genomics both are nouns.

Word	Noun	Adjective	Verb	Adverb
genetics	Yes	No	No	No
genomics	Yes	No	No	No

As nouns, genomics is a hyponym of genetics; that is, genomics is a word with a more specific, narrower meaning than genetics:

genetics: the branch of biology that studies heredity and variation in organisms
genomics: the branch of genetics that studies organisms in terms of their genomes (their full DNA sequences)

Other hyponyms of genetics include cytogenetics, proteomics, molecular genetics, pharmacogenetics.

genetics (noun)	genomics (noun)
the branch of biology that studies heredity and variation in organisms	the branch of genetics that studies organisms in terms of their genomes (their full DNA sequences)