# median

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## median

[me´de-an]
1. situated in the median plane or in the midline of a body or structure.
2. any value that divides the probability distribution of a random variable in half; that is, the probability of observing a value above the median and the probability of observing a value below the median are both less than or equal to one-half. For a finite population or sample, the median is the middle value of an odd number of values (arranged in ascending value) or any value between the two middle values of an even number of values; in the latter case it is conventional to use the average of the two middle values.
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.

## me·di·an

(mē'dē-ăn),
1. middle; lying in the midline. Synonym(s): medianus
2. The middle value in a set of measurements; like the mean, a measure of central tendency.
[L. medianus, middle]
Farlex Partner Medical Dictionary © Farlex 2012

## median

(mē′dē-ən)
1. Relating to, located in, or extending toward the middle.
2. Anatomy Of, relating to, or situated in or near the plane that divides a bilaterally symmetrical animal into right and left halves; mesial.
3. Statistics Relating to or constituting the middle value in a distribution.
n.
1. A median point, plane, line, or part.
2. Statistics The middle value in a distribution, above and below which lie an equal number of values.
3. Mathematics
a. A line that joins a vertex of a triangle to the midpoint of the opposite side.
b. The line that joins the midpoints of the nonparallel sides of a trapezoid.

## median

EBM
The exact middle value in a set of values that has been arranged in order from highest to lowest—i.e., there are as many values greater and less than the median. Where there is an even number of values, the median is designated as halfway between the two middle values.

Statistics
The midpoint of data after being ranked in a distribution, above and below which lie an equal number of values; a measure of central location, which divides a set of data into two equal parts; the data value at rank 0.5 x (n + 1).

The median is a better measure than the mean of the centre of a data distribution when the data are not symmetrically (normally) distributed, as it is not affected as severely as the mean by the outliers and non-symmetry typical of biological data. The median appears as a line in the box of a box-and-whisker plot and divides the middle two quartiles. Medians are compared by non-parametric statistical procedures.

## me·di·an

(mē'dē-ăn)
1. Central; middle; lying in the midline.
2. The middle value in a set of measurements; like the mean, a measure of central tendency.
Medical Dictionary for the Health Professions and Nursing © Farlex 2012

## median

1. Situated in or towards the MEDIAN PLANE of the body.
2. In statistics, the middle value when observations are ranked in order of magnitude.
Collins Dictionary of Medicine © Robert M. Youngson 2004, 2005

## median

1. (of a structure or character) describing a location along the line of bilateral symmetry
2. (in statistics), the middle value in a frequency distribution, on either side of which lie values with equal total frequencies.
Collins Dictionary of Biology, 3rd ed. © W. G. Hale, V. A. Saunders, J. P. Margham 2005

## me·di·an

(mē'dē-ăn)
1. Central; middle; lying in the midline.
2. The middle value in a set of measurements.
Medical Dictionary for the Dental Professions © Farlex 2012
References in periodicals archive ?
The motion that was moved by Foreign Minister and Deputy Prime Minister Winston Peters without prior notice, said, "This house condemns the attack on the Indian Central Reserve Police Force personnel in Pulwama."
New Delhi [India], Jan 14 ( ANI ): Central Reserve Police Force (CRPF) personnel Mahesh Kumar Meena succumbed to his injuries on Monday evening while undergoing treatment at AIIMS trauma centre here.
Khunti (Jharkhand) [India], Jan 1 ( ANI ): A 29-year-old Assistant Commandant of the Central Reserve Police Force (CRPF) from North Kashmir died due to electrocution while conducting a two-day special operation in Khunti district of Jharkhand, an official said on Tuesday.
20 ( ANI ): A Central Reserve Police Force (CRPF) jawan was killed and another injured in a bomb explosion in Samu Makhong area of Manipur's Imphal on Saturday.
Summary: Pulwama (Jammu and Kashmir) [India], Oct 16 (ANI): Terrorists hurled a rifle grenade at the camp of the Central Reserve Police Force's (CRPF)183 battalion, injuring one personnel.
Pulwama (Jammu and Kashmir) [India], Oct 16 ( ANI ): Terrorists hurled a rifle grenade at the camp of the Central Reserve Police Force's (CRPF)183 battalion, injuring one personnel.
Welfare take on the winner of next month's tie between Ryton Reserves and Walker Central Reserves.
In Division One, Walker Central Reserves kept alive their title chances with a 4-0 victory at North Shields Athletic Reserves.
The agency said the slow lane on both the north and southbound carriageways of the A1 will be closed from 9am until 3.30pm to allow work on the verges and central reserves. Alan Apps, project manager for the Highways Agency, said: "This is important safety work in the final phase of the Stannington scheme.
Tyneside Amateur League DIVISION One new boys Rutherford Reserves needed extra time to beat Walker Central Reserves in the final of the Bill Upsall Trophies Tyneside Amateur Challenge Shield.
Gosforth Bohemians Reserves look to have avoided relegation by triumphing 3-2 at home to Walker Central Reserves.
With goals from Lee Ellis (2) and Martin Cosgrave, FC United of Manchester Reserves beat Broadheath Central Reserves 3-1, while Maine Road Reserves (Mike O'Neil and Abid Odin) went out 3-2 at home to Broadheath Central first team, for whom Jimmy Cumbis scored a hat-trick.

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