sex ratio


noun Sociology.

the proportional distribution of the sexes in a population aggregate, expressed as the number of males per 100 females.

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Origin of sex ratio

First recorded in 1905–10
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020

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Medical definitions for sex ratio

sex ratio

n.

The proportion of males to females in a given population, usually expressed as the number of males per 100 females at a specific stage in life, especially at conception, birth, and a given stage between birth and death.
The ratio of the numbers of males to females affected by a particular disease or trait.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.