probiotic bacterium vs probiotic microflora

probiotic bacterium and probiotic microflora both are nouns.

Word	Noun	Adjective	Verb	Adverb
probiotic bacterium	Yes	No	No	No
probiotic microflora	Yes	No	No	No

As nouns, probiotic bacterium and probiotic microflora are synonyms defined as:

probiotic bacterium and probiotic microflora: a beneficial bacterium found in the intestinal tract of healthy mammals; often considered to be a plant

Other synonyms of probiotic bacterium include probiotic, probiotic flora.

probiotic bacterium (noun)	probiotic microflora (noun)
a beneficial bacterium found in the intestinal tract of healthy mammals; often considered to be a plant	a beneficial bacterium found in the intestinal tract of healthy mammals; often considered to be a plant