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median.

1 In statistics, a type of average. In a group of numbers as many numbers of the group are larger than the median as are smaller. In the group 4, 5, 6, 9, 13, 14, 19, the median is 9, three numbers being larger and three smaller. When there is an even number of numerals in the group, the median is usually defined as the number halfway between the middle pair.

2 In geometry, the line segment connecting any vertex of a triangle to the midpoint of the opposite side; the three medians of a triangle intersect in a single point, called the median point, or centroid. The median of a trapezoid is the line segment connecting the midpoints of the nonparalled opposite sides.

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median

1. Biology of or relating to the plane that divides an organism or organ into symmetrical parts

2. Geometry

a. a straight line joining one vertex of a triangle to the midpoint of the opposite side

b. a straight line joining the midpoints of the nonparallel sides of a trapezium

3. Canadian the strip, often covered with grass, that separates the two sides of a highway

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median [′mē·dē·ən]

(mathematics)

Any line in a triangle which joins a vertex to the midpoint of the opposite side.

The line that joins the midpoints of the nonparallel sides of a trapezoid. Also known as midline.

(science and technology)

Located in the middle.

(statistics)

An average of a series of quantities or values; specifically, the quantity or value of that item which is so positioned in the series, when arranged in order of numerical quantity or value, that there are an equal number of items of greater magnitude and lesser magnitude.