...ned primarily by reference to relationships which pertain to or arise from reproductive processes and which are regulated by law or by custom. The fundamental rela ...11|6|1}}, a marriage cohort is a group of persons married within a defined period etc. The term {{TextTerm|generation|2|116|2}} may also be used as a synonym

{{Note|2| reproduction n. — reproduce v. — reproductive adj.}} ...called an {{TextTerm|abortion|5|603}} (cf. para. {{NonRefTerm|604}}). The period of about six weeks after delivery (during which the uterus usually regains

...r {{TextTerm|menses|4|620|2}} in women—also begins at puberty. The first period is called the {{TextTerm|menarche|5|620}} and menstruation ceases with the ...rm|Fertility|3|621}} ({{RefNumber|60|1|1}}) on the other hand means actual reproductive performance —whether applied to an individual or group. It should be note

...er 1,000. Like other rates in which the population at the mid-point of the period is used as the denominator of the fraction this is sometimes called the {{T ...xEntry=fertility rate, general}} usually relate all births to all women of reproductive age regardless of marital status and in such cases are the same as female f

...where no account is taken of mortality before the end of the reproductive period ({{RefNumber|62|0|1}}), and {{TextTerm|net replacement|4|710|OtherIndexEntr ...computed similarly on the assumption that mortality before the end of the reproductive age is zero. {{TextTerm|Male reproduction rates|5|711|IndexEntry=male repro