dominating vs dominant

dominating is not a noun while dominant is a noun.

Word	Noun	Adjective	Verb	Adverb
dominating	No	Yes	No	No
dominant	Yes	Yes	No	No

dominating (noun)	dominant (noun)
	an allele that produces the same phenotype whether its paired allele is identical or different
	(music) the fifth note of the diatonic scale

dominating (adjective)	dominant (adjective)
most powerful or important or influential	exercising influence or control
offensively self-assured or given to exercising usually unwarranted power	(of genes) producing the same phenotype whether its allele is identical or dissimilar
used of a height or viewpoint	most frequent or common