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单词 population pyramid
释义

Definition of population pyramid in English:

population pyramid

noun

  • A roughly triangular figure on a level base, the width of which at any height indicates the numbers having an age proportional to that height; a population distribution.

Origin

1920s; earliest use found in American Journal of Sociology.

Definition of population pyramid in US English:

population pyramid

noun

  • A roughly triangular figure on a level base, the width of which at any height indicates the numbers having an age proportional to that height; a population distribution.

Origin

1920s; earliest use found in American Journal of Sociology.
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更新时间：2025/7/4 23:56:36