Meaning of MEDIAN in English

MEDIAN

[adjective] [not gradable], [noun] [C] [specialized] - (of) the value which is the middle one in a set of values arranged in order of sizeMedian household income fell last year.In this hospital, the median wait for treatment is 198 days.The median age of a set of children aged 6, 9, 10, 15 and 16 is 10.Median strip is [US and ANZ] for central reservation. See at central (NEAR THE MIDDLE).

Cambridge English vocab.      Кембриджский английский словарь.