Main Entry:: ¹me·di·an
Pronunciation:: \ˈmē-dē-ən\
Function:: noun
Etymology:: Middle English mediane, from Late Latin mediana (vena) median (vein), from feminine of Latin medianus in the middle, central, from medius middle — more at mid
Date:: 15th century

1: a medial part (as a vein or nerve)2 a: a value in an ordered set of values below and above which there is an equal number of values or which is the arithmetic mean of the two middle values if there is no one middle number b: a vertical line that divides the histogram of a frequency distribution into two parts of equal area c: a value of a random variable for which all greater values make the cumulative distribution function greater than one half and all lesser values make it less than one half3 a: a line from a vertex of a triangle to the midpoint of the opposite side b: a line joining the midpoints of the nonparallel sides of a trapezoid4: median strip

synonyms see average

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