population pyramid

noun

, Sociology.

1. a graph showing the distribution of a population by sex or gender, age, etc., the depiction of which is typically pyramid-shaped.

population pyramid

noun

1. a pyramid-shaped diagram illustrating the age distribution of a population: the youngest are represented by a rectangle at the base, the oldest by one at the apex

Word History and Origins

Origin of population pyramid¹

First recorded in 1945–50

Example Sentences

To address this inverse population pyramid, the state ended the one-child policy in 2015, introducing a national two-child policy in its place.

From No Straight News