quintile

[ kwin-til, -tahyl ]

noun

1. Statistics. a quantile for the special case of five equal proportions.
2. Astrology. a quintile aspect.

adjective

1. Astrology. of or relating to the aspect of two heavenly bodies that are one fifth of the zodiac, or 72°, apart.

quintile

/ ˈkwɪntaɪl /

noun

1. an aspect of 72° between two heavenly bodies
2. a fifth part of a distribution

Word History and Origins

Origin of quintile¹

1600–10; < Latin quīnt ( us ) fifth + -ile (as in quartile )

Word History and Origins

Origin of quintile¹

C17: from Latin quintus fifth

Example Sentences

The researchers found that, within each quintile of deprivation, exclusively breastfed infants used fewer healthcare services and incurred lower costs compared to infants fed any formula milk.

From Science Daily

What is more likely for both is they will stay in the poorest quintile or at best, move up one level to lower middle class.

From Seattle Times

According to “ Race and Economic Opportunity in the United States: An Intergenerational Perspective,” part of the groundbreaking Opportunity Insights project based at Harvard, only 2.5% of Black kids born to a parent or parents in the bottom quintile move to the top quintile of household income.

From Seattle Times

For 2019, that lowered the share of households in the bottom quintile who are paying half or more of their income for shelter to 52 percent, from 60 percent.

From New York Times

The Census Bureau reports that in Bellevue, the top quintile of households has soared past the half-million mark for the first time.

From Seattle Times