| Popul | a chart showing the number of people as a function of their ages |
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| Popul | a scientist who studies the growth and density of populations and their vital statistics |
| Popul | a change in the relative numbers of the different groups of individuals making up a population |
| Popul | the political doctrine that supports the rights and powers of the common people in their struggle with the privileged elite |
| Popul | an advocate of democratic principles |
| Popul | a former political party in the United States |
| Popul | densely populated |
| Popul | a genus of trees of the family Salicaceae that is found in the northern hemisphere |
| Popul | a poplar that is widely cultivated in the United States |
| Popul | poplar of northeastern North America with broad heart-shaped leaves |
| Popul | large rapidly growing poplar with faintly lobed dentate leaves gray on the lower surface |
| Popul | a common poplar of eastern and central United States |