: the whole number of people living in a country, city, or area
: a group of people or animals living in a certain place <the deer population>
Word Root of POPULATION
The Latin word populus, meaning “people,” gives us the root popul. Words from the Latin populus have something to do with people. A population is the group of people living in a particular place. Anything popular is common among or enjoyed by many people. A place that is populous has many people living in it.
Medical Definition of POPULATION
: the whole number of people or inhabitants in a country or region
a: a body of persons or individuals having a quality or characteristic in common b (1): the organisms inhabiting a particular locality (2): a group of interbreeding organisms that represents the level of organization at which speciation begins
: a group of individual persons, objects, or items from which samples are taken for statistical measurement