quellung reaction vs quellung

quellung reaction and quellung both are nouns.

Word	Noun	Adjective	Verb	Adverb
quellung reaction	Yes	No	No	No
quellung	Yes	No	No	No

As nouns, quellung reaction and quellung are synonyms defined as:

quellung reaction and quellung: the swelling of the capsule surrounding a microorganism after reaction with an antibody; the basis of certain tests for identifying microorganisms

quellung reaction (noun)	quellung (noun)
the swelling of the capsule surrounding a microorganism after reaction with an antibody; the basis of certain tests for identifying microorganisms	the swelling of the capsule surrounding a microorganism after reaction with an antibody; the basis of certain tests for identifying microorganisms