- The definition of a subpopulation is a specific portion or part of a larger population.
An example of a subpopulation is the population of women among the population as a whole.
subpopulation definition by Webster's New World
Webster's New World College Dictionary Copyright © 2010 by Wiley Publishing, Inc., Cleveland, Ohio. Used by arrangement with John Wiley & Sons, Inc.
a subdivision of a population, with common, distinguishing characteristics
subpopulation definition by American Heritage Dictionary
A part or subdivision of a population, especially one originating from some other population: microbial subpopulations.