Queteletn.

Brit.

/ˈkɛtəleɪ/, U.S.

/ˈkɛdəleɪ/

Forms: 1900s– Quetelet, 1900s– Quételet.

Origin: From a proper name. Etymon: proper name Quételet.

Etymology: < the name of Lambert Adolphe Jacques Quételet (1796–1874), Belgian statistician, sociologist, mathematician, and astronomer. In sense 1 described by Quételet in Lettres sur la théorie des probabilités appliquées aux sciénces morales et politiques (1846) 386. In sense 2 introduced by Quételet in Sur l'homme et le développement de ses facultés, ou Essai de physique sociale (1835) II. ii. 52.

Chiefly Biology and Medicine.

1. attributive and in the genitive. Designating the normal (Gaussian) curve, esp. as applied to sociological or biological variation. Now historical.

ΘΚΠ

the world > relative properties > number > probability or statistics > [noun] > graph > showing normal distribution

Quetelet1909

bell curve1970

1909 Cent. Dict. Suppl. at Curve Quételet's curve, a curve which exhibits the arrangement or distribution of a group of statistical events according to the mathematical law of error.

1910 J. B. Farmer & A. D. Darbishire tr. H. De Vries Mutation Theory I. 149 The form of a Quetelet's curve [Ger. dem Quetelet'schen Gesetze folgende Variationscurve] is determined by two factors; the magnitude of the mean value and the amplitude of variation.

1917 Amer. Jrnl. Bot. 4 635 The distribution of abnormal pedicels among the inflorescences..is not to be represented by a normal or Quetelet's curve.

1981 Science 12 Oct. 143/2 Quetelet collected striking examples of distributions of human traits that conformed to his theory that the normal curve—or the Quetelet curve as it was once called—was a law of nature.

2003 Cambr. Hist. Sci. VII. 243 Quetelet's curve was a tool for investigating biological variability.

2. attributive and in the genitive. Designating any of several indices relating body height and weight proposed by Quételet. Cf. body mass index n. at body n. Compounds 2.In later use: spec. designating weight in kilograms divided by the square of the height in metres.

ΘΚΠ

the world > life > the body > bodily constitution > [noun] > specific index

Quetelet1920

1920 Amer. Jrnl. Physical Anthropol. 3 471 Quetelet's index brings out the proper relation between chubbiness of the infant of one year and the adult of 25 which is not properly brought out by using the square of the stature as a divisor.

1942 Child Devel. 13 73 The old Quetelet index has the clearest and simplest meaning stating only how many units of mass (grams) in a given individual or an average group correspond to a unit of stature (centimeter).

1994 Independent on Sunday 9 Oct. (Review Suppl.) 77/2 The definition of obesity is a technical one: the internationally accepted measure, the Quetelet index, is obtained by dividing the weight in kilograms by the square of the height in metres; if the figure is over 30, the individual is judged to be obese.

This entry has been updated (OED Third Edition, December 2007; most recently modified version published online March 2022).

单词	quetelet
释义	Queteletn. Brit. /ˈkɛtəleɪ/, U.S. /ˈkɛdəleɪ/ Forms: 1900s– Quetelet, 1900s– Quételet. Origin: From a proper name. Etymon: proper name Quételet. Etymology: < the name of Lambert Adolphe Jacques Quételet (1796–1874), Belgian statistician, sociologist, mathematician, and astronomer. In sense 1 described by Quételet in Lettres sur la théorie des probabilités appliquées aux sciénces morales et politiques (1846) 386. In sense 2 introduced by Quételet in Sur l'homme et le développement de ses facultés, ou Essai de physique sociale (1835) II. ii. 52. Chiefly Biology and Medicine. 1. attributive and in the genitive. Designating the normal (Gaussian) curve, esp. as applied to sociological or biological variation. Now historical. ΘΚΠ the world > relative properties > number > probability or statistics > [noun] > graph > showing normal distribution Quetelet1909 bell curve1970 1909 Cent. Dict. Suppl. at Curve Quételet's curve, a curve which exhibits the arrangement or distribution of a group of statistical events according to the mathematical law of error. 1910 J. B. Farmer & A. D. Darbishire tr. H. De Vries Mutation Theory I. 149 The form of a Quetelet's curve [Ger. dem Quetelet'schen Gesetze folgende Variationscurve] is determined by two factors; the magnitude of the mean value and the amplitude of variation. 1917 Amer. Jrnl. Bot. 4 635 The distribution of abnormal pedicels among the inflorescences..is not to be represented by a normal or Quetelet's curve. 1981 Science 12 Oct. 143/2 Quetelet collected striking examples of distributions of human traits that conformed to his theory that the normal curve—or the Quetelet curve as it was once called—was a law of nature. 2003 Cambr. Hist. Sci. VII. 243 Quetelet's curve was a tool for investigating biological variability. 2. attributive and in the genitive. Designating any of several indices relating body height and weight proposed by Quételet. Cf. body mass index n. at body n. Compounds 2.In later use: spec. designating weight in kilograms divided by the square of the height in metres. ΘΚΠ the world > life > the body > bodily constitution > [noun] > specific index Quetelet1920 1920 Amer. Jrnl. Physical Anthropol. 3 471 Quetelet's index brings out the proper relation between chubbiness of the infant of one year and the adult of 25 which is not properly brought out by using the square of the stature as a divisor. 1942 Child Devel. 13 73 The old Quetelet index has the clearest and simplest meaning stating only how many units of mass (grams) in a given individual or an average group correspond to a unit of stature (centimeter). 1994 Independent on Sunday 9 Oct. (Review Suppl.) 77/2 The definition of obesity is a technical one: the internationally accepted measure, the Quetelet index, is obtained by dividing the weight in kilograms by the square of the height in metres; if the figure is over 30, the individual is judged to be obese. This entry has been updated (OED Third Edition, December 2007; most recently modified version published online March 2022). < n.1909
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