Noun
postmenopause (uncountable)
The period in which menopause no longer occurs; often defined as the first full year in which no menstruation occurs.
In women without a uterus, menopause or postmenopause can be identified by a blood test showing a very high FSH level. Source: Internet
The reason for this delay in declaring postmenopause is because periods are usually erratic at this time of life. Source: Internet