diaper dermatitis vs diaper rash

diaper dermatitis and diaper rash both are nouns.

Word	Noun	Adjective	Verb	Adverb
diaper dermatitis	Yes	No	No	No
diaper rash	Yes	No	No	No

As nouns, diaper dermatitis and diaper rash are synonyms defined as:

diaper dermatitis and diaper rash: dermatitis of the thighs and buttocks of infants; supposedly caused by ammonia in the urine in the child's diapers

diaper dermatitis (noun)	diaper rash (noun)
dermatitis of the thighs and buttocks of infants; supposedly caused by ammonia in the urine in the child's diapers	dermatitis of the thighs and buttocks of infants; supposedly caused by ammonia in the urine in the child's diapers