strep throat vs streptococcus tonsilitis

strep throat and streptococcus tonsilitis both are nouns.

Word	Noun	Adjective	Verb	Adverb
strep throat	Yes	No	No	No
streptococcus tonsilitis	Yes	No	No	No

As nouns, strep throat and streptococcus tonsilitis are synonyms defined as:

strep throat and streptococcus tonsilitis: an infection of the oral pharynx and tonsils by streptococcus

Other synonyms of strep throat include septic sore throat, streptococcal sore throat, throat infection.

strep throat (noun)	streptococcus tonsilitis (noun)
an infection of the oral pharynx and tonsils by streptococcus	an infection of the oral pharynx and tonsils by streptococcus