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quinine
quinine water
quinizarine
quinnat salmon
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quinoa
quinoline
quinone
quinquagenarian
Quinquagesima
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quintile

quin·tile [ kwín tl, kwínt'l ] (plural quin·tiles)


noun 
Definition:
 
1. statistical division: one of the five equal populations into which a statistical sample can be divided

2. statistical value: in statistics, one of the values that divide a frequency distribution into five parts, each containing a fifth of the sample population

3. distance between planets: the astrological aspect of planets that are distant from each other by 72 degrees or one fifth of the zodiac

[Early 17th century. Latin quintilis, < quintus "fifth"]
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