middle age

American  

noun

1. the period of human life between youth and old age, sometimes considered as the years between 45 and 65 or thereabout.

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middle age British  

noun

1. the period of life between youth and old age, usually (in man) considered to occur approximately between the ages of 40 and 60

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Etymology

Origin of middle age

Middle English word dating back to 1350–1400

Example Sentences

The team then tracked how the numbers of these cells changed as the mice moved from young adulthood to middle age and then to old age.

From Science Daily

Most poets write their best work before middle age.

From The Wall Street Journal

Like his friend from the 1950s Gene Hackman, Robert Duvall had to wait for the culture to come around to men who had his ordinary-guy looks, and that wasn’t until he was entering middle age.

From The Wall Street Journal

The study found that middle age and older adults at elevated risk for cardiometabolic disease benefited from extending their overnight fasting window by roughly two hours.

From Science Daily

I tried supplements, suggested by the functional health doctor, including ones labeled “hormonal detox,” and the progesterone cream, one of the hormones that declines in women in middle age.

From The Wall Street Journal

Related Words

• midlife