What is "pullulating"

Usage examples of "pullulating".

They arose in the dank dawn out of a sleep without rest to quietly assume the previous day's languid positions in the boat, gazing speechlessly like sated connoisseurs upon mile after absolute mile of bursting, shrieking, pullulating redundancy, verdure without beginning or end, the moss-backed primordial crowded up against yesterday's tender birth, the same random elements combined, recombined in a ceaseless round of genesis and collapse.

It's actual disaster, the risk that in two or three generations' time there won't be enough sane folk to make new discoveries, there won't be any news to carry, there won't be any reports to publish, there won't be scholars anymore, but just a pullulating mindless mass, alive enough to breed but not well fed enough to reason and to plan.

The myriads, the hordes of human beings crawling and pullulating like bacteria across the face of the planet had never known the lash of one of his land.

Yes, and she was beautiful, beautiful in the hard, glossy manner of those rarefied occupants of the city's sky-homes, her bones skin posture all bearing witness to her long divorce from the impoverished, heavy, pullulating earth.