sex ratio

sex ratio
noun
: the proportion of males to females in a population as expressed by the number of males per hundred females

* * *

Sociol.
the proportional distribution of the sexes in a population aggregate, expressed as the number of males per 100 females.
[1905-10]

* * *

sex ratio,
the proportion of males to females in a given population, usually stated as the number of males per 100 females. In humans, the sex ratio is 103 to 107 (that is, 103 to 107 males are born to every 100 females born).

Useful english dictionary. 2012.

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  • Sex ratio — is the ratio of males to females in a population. The primary sex ratio is the ratio at the time of conception, secondary sex ratio is the ratio at time of birth, and tertiary sex ratio is the ratio of mature organisms. [Nancy S. Coney and W. C.… …   Wikipedia

  • Sex ratio — Proportion d hommes par rapport aux femmes dans la population totale par pays.      Population féminine plus importante …   Wikipédia en Français

  • sex-ratio — [ sɛksrasjo ] n. f. • 1948; mot angl. , de sex « sexe » et ratio « pourcentage » ♦ Anglic. Didact. Rapport entre le nombre des individus mâles et femelles dans une population. Des sex ratios. ● sex ratio nom masculin (anglais sex ratio, de sex,… …   Encyclopédie Universelle

  • sex ratio — n the proportion of males to females in a population as expressed by the number of males per hundred females * * * the proportion of males to females in a population, usually expressed as the number of males per 100 females. The primary sex ratio …   Medical dictionary

  • sex ratio — sex ratio. См. соотношение полов. (Источник: «Англо русский толковый словарь генетических терминов». Арефьев В.А., Лисовенко Л.А., Москва: Изд во ВНИРО, 1995 г.) …   Молекулярная биология и генетика. Толковый словарь.

  • Sex-ratio — Proportion d hommes par rapport aux femmes dans la population totale par pays.      Population féminine plus importante      …   Wikipédia en Français

  • sex-ratio — Conventionally defined as the number of males per 1,000 females in the population of a society. More boys than girls are born each year, but the excess number of males at birth is gradually reduced by the higher male mortality rate , to an age… …   Dictionary of sociology

  • sex ratio — the proportion of males to females in a population, usually expressed as the number of males per 100 females. The primary sex ratio, at the time of fertilization, is in theory 50% male. The secondary sex ratio, found at birth, usually indicates… …   The new mediacal dictionary

  • Sex-ratio à la naissance — Sex ratio Proportion d hommes par rapport aux femmes dans la population totale par pays.      Population féminine plus importante …   Wikipédia en Français

  • sex-ratio organism — sex ratio organism. См. организм соотношения полов. (Источник: «Англо русский толковый словарь генетических терминов». Арефьев В.А., Лисовенко Л.А., Москва: Изд во ВНИРО, 1995 г.) …   Молекулярная биология и генетика. Толковый словарь.

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