Quintile definition

kwĭntīl, kwĭntl
The astrological aspect of planets distant from each other by 72° or one fifth of the zodiac.
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(statistics) The portion of a frequency distribution containing one fifth of the total sample.
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(astrol.) The aspect of two celestial bodies 72°, or one fifth of a circle, apart.
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Any of the values in a series dividing the distribution of the individuals in the series into five groups of equal frequency.
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Any of these groups.
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(statistics) Any of the quantiles which divide an ordered sample population into five equally numerous subsets.
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(by extension) A subset thus obtained.
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(astrology) An aspect of planets that are distant from each other by one fifth of a zodiac (72°)
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Other Word Forms

Noun

Singular:
quintile
Plural:
quintiles

Origin of quintile

  • Latin quīntus fifth penkwe in Indo-European roots -ile (as in quartile)

    From American Heritage Dictionary of the English Language, 5th Edition