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Definition of Median

Babylon English

average, mean; located in the middle
average, mean; middle number or value in any given set of numbers or values (Mathematics); straight line from the vertex of a triangle to the middle of the opposite side (Geometry)
Median Definition from Language, Idioms & Slang Dictionaries & Glossaries
Webster's Revised Unabridged Dictionary (1913)
A median line or point.
Situated in the middle; lying in a plane dividing a bilateral animal into right and left halves; -- said of unpaired organs and parts; as, median coverts.
Being in the middle; running through the middle; as, a median groove.
Webster's Revised Unabridged Dictionary (1913), edited by Noah Porter. About
hEnglish - advanced version

\me"di*an\ (?), a. [l. medianus, fr. medius middle. see medial.]
1. being in the middle; running through the middle; as, a median groove.
2. (zo?l.) situated in the middle; lying in a plane dividing a bilateral animal into right and left halves; -- said of unpaired organs and parts; as, median coverts.
line. (a) (anat.) any line in the mesial plane; specif., either of the lines in which the mesial plane meets the surface of the body. (b) (geom.) the line drawn from an angle of a triangle to the middle of the opposite side; any line having the nature of a diameter.
plane (anat.), the mesial plane.
point (geom.), the point where the three median lines of a triangle mutually intersect.
\me"di*an\, n. (geom.) a median line or point.

  similar words(4) 

 median line 
 median point 
 median plane 
 unpaired or median 
WordNet 2.0

1. the value below which 50% of the cases fall
(synonym) median value
(hypernym) average, norm
(classification) statistics

1. relating to or constituting the middle value of an ordered set of values (or the average of the middle two in an even-numbered set); "the median value of 17, 20, and 36 is 20"; "the median income for the year was $15,000"
(synonym) median(a), average
(similar) normal
(classification) statistics
2. dividing an animal into right and left halves
(synonym) medial
(similar) mesial
3. relating to or situated in or extending toward the middle
(synonym) medial
(similar) central
Median Definition from Business & Finance Dictionaries & Glossaries
The middle number or center value of a set of data in which all the data are arranged in sequence.
Sean_Woo's Finance,GIS & Real Estate Glossary
1. the value such that one half of the numbers are larger, and one half are smaller
2. value of the middle term in a data set that has been ranked in increasing order
3. median=value of the (n+1/2)th term in a ranked data set
4. also as second quartile.

see quartile, first quartile, third quartile
Raynet Business & Marketing Glossary
1. the highest value occuring above 50 % (see mode and mean).
2. in research, a measure of central tendency that identifies the middle-point value (or 50th percentile) in a set of values when they are arranged in order of magnitude.
Copyright © 2001, Ray Wright
Median Definition from Social Science Dictionaries & Glossaries
Glossary of Sociology
The number that falls halfway in a range of numbers--the score below which are half the scores and above which are the other half. The median is a way of calculating 'central tendency' which is sometimes more useful than calculating a mean (particularly when many extreme scores are in the distribution).
Median Definition from Science & Technology Dictionaries & Glossaries
EIA Energy Glossary
The middle number of a data set when the measurements are arranged in ascending (or descending) order.
Source: Energy Information Administration, 2006
Bureau of Labor Statistics Glossary
Is the measure used to summarize the varying lengths of absences from work among the cases with days away from work. Half the cases involved more days and half involved less days than a specified median.
© U.S. Bureau of Labor Statistics
Electronic Statistics Textbook
A measure of central tendency, the median (the term first used by Galton, 1882) of a sample is the value for which one-half (50%) of the observations (when ranked) will lie above that value and one-half will lie below that value. When the number of values in the sample is even, the median is computed as the average of the two middle values.
See also, Descriptive Statistics.
Common Concepts in Statistics
The value that divides the frequency distribution in half when all data values are listed in order. It is insensitive to small numbers of extreme scores in a distribution. Therefore, it is the preferred measure of central tendency for a skewed distribution (in which the mean would be biased). The median test assesses the statistical significance of the difference between two medians. (Online Median Test.)
Median Definition from Encyclopedia Dictionaries & Glossaries
English Wikipedia - The Free Encyclopedia
In statistics and probability theory, a median is the number separating the higher half of a data sample, a population, or a probability distribution, from the lower half. The median of a finite list of numbers can be found by arranging all the observations from lowest value to highest value and picking the middle one (e.g., the median of {3, 3, 5, 9, 11} is 5). If there is an even number of observations, then there is no single middle value; the median is then usually defined to be the mean of the two middle values (the median of {3, 5, 7, 9} is (5 + 7) / 2 = 6), which corresponds to interpreting the median as the fully trimmed mid-range. The median is of central importance in robust statistics, as it is the most resistant statistic, having a breakdown point of 50%: so long as no more than half the data are contaminated, the median will not give an arbitrarily large result. A median is only defined on ordered one-dimensional data, and is independent of any distance metric. A geometric median, on the other hand, is defined in any number of dimensions.

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Median Definition from Society & Culture Dictionaries & Glossaries
Social Work in Canada
a measure of central tendency, which appears in the middle of an ordered sequence of values. eg. the median wage is the point at which half made more and half made less. If you place the series in ascending or descending order, the median is the number that divides the series into two parts each containing the same number of data. When there is an even number of data, determine the two central values and take the arithmetic mean.
Environmental Engineering (English ver.)
(Statistics) In a set of observations, the middle-most value with an equal number of observations lying above and below the median value. Also see Mean and Mode.
Median Definition from Medicine Dictionaries & Glossaries
NCI Dictionary of Cancer Terms
A statistics term. The middle value in a set of measurements.
A Service of the National Cancer Institute.
Glossary of Epidemiology Terms
The measure of central location which divides a set of data into two equal parts.
Dictionary of Medicine (Shahram)
The middle. Like the median strip in a highway.
Hepatitis Central (TM) Liver Disease Medical Glossary
Aids Glossary
the number within a series that is preceded and followed by an equal number of values. Contrast with mean.
HIV Vaccine Glossary
the midpoint value obtained by ranking all values from highest to lowest and choosing the value in the middle. The median divides a population into two equal halves.