| 释义 |
▪ I. quintile, a. and n.1|ˈkwɪntɪl, -aɪl|
Also 7 -il(l.
[f. L. quint-us fifth + -ile, after quartile.]
1. Astrol. quintile (aspect): A planetary aspect, introduced by Kepler, in which the planets are one-fifth of a circle, or 72 degrees, distant from each other.
c1610Sir C. Heydon Astrol. Disc. (1650) 95 In these our days our late Artists..have added unto these former Aspects three others, viz. the Quintile [etc.]. 1647Lilly Chr. Astrol. iii. 32 A Quintill consists of two Signes twelve degrees. 1686Goad Celest. Bodies i. ii. 39 This Notable Effect may be accounted for without these Quintiles.
2. Statistics. Any of the four values of a variate which divide a frequency distribution into five groups, each containing one fifth of the total population; also, any of the five groups so produced.
1951Brit. Jrnl. Nutrition V. 199 For the purposes of classification of the subjects into categories of fatness, we have used the twentieth, fortieth, sixtieth and eightieth percentile. These limit values are sometimes called ‘quintiles’. 1973Jrnl. Genetic Psychol. CXXIII. 79 Each class's ranked students were divided into quintiles: high, medium-high, middle, medium-low, and low status. 1974Nature 22 Nov. 294/2 These are quintiles for temperature and terciles for rainfall. 1976Lancet 6 Nov. 979/2 Apart from smoking, where no such division into quintiles is practicable, the five measures used are systolic and diastolic blood-pressure, overweight, [etc.].
▪ II. † quintile, n.2 Obs. rare—0.
[ad. L. quintīlis: cf. prec.]
July. (Blount Glossogr. 1656.) Hence † quintilian a. Obs. rare—0.
1623Cockeram, Quintilian moneth, the moneth of July. |