Wiktionary
microflora
n. microscopic plant life, especially the bacterial colonies found in the gut of normal, healthy animals and humans.
Usage examples of "microflora".
Although our microflora grow fast, they also die fast, rereleasing their carbon compounds.
Their genetic code had been based on triplet base sequences strung on a DNA double helix, reinforcing the modified HoyleWickramasinghe panspermia hypothesis that all life in the Solar System, including the long-extinct Martian microflora, had a common ancestor.
To avoid the embarrassing possibility of introducing her own microflora into the experiment, she worked with the samples only outside, under the cold red-stained sky.
The microfloras of animal intestinal tracts are part of the nutritional system.