(biology) A collection of organisms of a particular species, sharing a particular characteristic of interest, most often that of living in a given area.
(statistics) A group of units (persons, objects, or other items) enumerated in a census or from which a sample is drawn.
“The birds, with their various song, gave an air of populousness and animation to the grove.”
“One was concerned with the relative populousness of the ancient and modern worlds and the other seven were contributions to what is now called economics.”
“By degrees the populousness of this encampment began to produce its inconveniences.”