| 释义 |
curtate, a. Geom. and Astron.|ˈkɜːteɪt|
[ad. L. curtāt-us, f. curtāre to cut short: see curt v.]
1. Shortened, reduced; applied to a line projected orthographically upon a plane. curtate distance: the distance of a planet or comet from the sun or earth, projected upon the plane of the ecliptic. curtate cycloid: see cycloid.
1676Halley in Rigaud Corr. Sci. Men (1841) I. 239 As cosine of inclination to radius, so SP, the curtate distance, to the true distance of the planet from the sun. 1726[see curtation 2]. 1833Herschel Astron. viii. 275. 1893 J. R. Harris Stichometry 18 The lines represent respectively a somewhat curtate half-hexameter and a similarly divided iambic trimeter.
2. Economics and Statistics. Shortened or limited according to some formula or rule; esp. counting or calculated for the number of full years in a period, to the exclusion of the odd fraction of a year.
1875Encycl. Brit. II. 78 This formula gives the average number of complete years that persons of the given age will live..and makes no allowance for the portion of the year in which death occurs. The expectation thus found is called the curtate expectation. 1927Bowley & Stamp Nat. Income, 1924 21 When the averages of these curtate groups are taken, that for women is often higher than for men. 1927B. C. Hoskins Insur. Lexicon 134 If payments cease with the last payment preceding the death, the annuity is said to be ‘non-apportionable’, or ‘without proportion’, or ‘curtate’. 1957Kendall & Buckland Dict. Statistical Terms 75 If an assurance matures in 3 years 9 months, the curtate duration is 3 years. |