mutation vs monstrosity

mutation and monstrosity both are nouns.

Word	Noun	Adjective	Verb	Adverb
mutation	Yes	No	No	No
monstrosity	Yes	No	No	No

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

mutation: (biology) an organism that has characteristics resulting from chromosomal alteration
monstrosity: a person or animal that is markedly unusual or deformed

Other hyponyms of mutation include freak, lusus naturae, monster.

mutation (noun)	monstrosity (noun)
(genetics) any event that changes genetic structure; any alteration in the inherited nucleic acid sequence of the genotype of an organism	something hideous or frightful
a change or alteration in form or qualities	a person or animal that is markedly unusual or deformed
(biology) an organism that has characteristics resulting from chromosomal alteration