WordNet
n. harmless microorganisms (as Escherichia coli) that inhabit the intestinal tract and are essential for its normal functioning
Usage examples of "intestinal flora".
Every human being carries with him the seeds of infection, from oral bacteria to intestinal flora, and even often streptococci in the hair follicles of the skin.
The ship didn't take them directly back to the Bureau of Human Habitability Exploration headquarters on Earth, it first stopped at Kingdom, a colonized world just three light-years from Quagmire, to drop off a consignment of intestinal flora culture.
A recent plague had attacked the intestinal flora of the colonists, and they were facing famine from their reduced ability to digest food.
Never the same junk mail, I'm not bothered with phone-calls from roofing contractors, and my intestinal flora is constantly challenged.
The changeover of intestinal flora has a pretty violent effect on the digestive system-not dangerous, since she's under constant observation.
Then, of course, we had to replace all of her normal intestinal flora, now dead, with a commercially prepared culture.
They have unusual intestinal flora and it may have something to do with that.
A dispenser beneath the poster offered half-credit doses of tablets guaranteed to restore intestinal flora as well.