normalityn.
/nɔːˈmalᵻti/, U.S. /nɔrˈmælədi/ 1.
a. The character or state of being normal.
ΘΚΠ
the world > relative properties > order > agreement, harmony, or congruity > conformity to or with a pattern, etc. > [noun] > conformity to rule > quality or state of being normal
naturalness?a1425
kindliness?c1425
normality1839
normalness1854
normalism1884
normalcy1920
1839 Morning Chron. 30 May The blistering demon of normality is evoked from the hell of French infidelity to become the patron saint of high-Church educators.
1848 E. A. Poe Eureka 58 In a condition of positive normality or rightfulness.
1866 Athenæum 29 Dec. 873 Normality..gives us only the negative notion of the absence of defect.
1896 T. C. Allbutt et al. Syst. Med. I. 150 Those parts in which it is their business to maintain constancy, that is normality.
1920 F. S. Fitzgerald This Side of Paradise ii. ii. 227 Existence had settled back to an ambitionless normality.
1948 Brit. Jrnl. Psychol. Sept. 8 As the patient approaches normality the normal mechanism of co-conscious rather than conscious stimulation appears.
1968 V. S. Pritchett Cab at Door vi. 102 We were a race apart; abnormal but proud of our stripes, longing for the normality we saw around us.
1987 P. Lomas Limits of Interpretation xii. 139 The patient will be led away from her deviance and guided towards normality.
2000 Australian 31 May (Brisbane ed.) 7/2 Fiji's beseiged capital city miraculously almost returned to bustling normality yesterday just hours after a military counter-coup imposed martial law.
b. Statistics. The property of having a normal or Gaussian frequency distribution.
ΘΚΠ
the world > relative properties > number > probability or statistics > [noun] > distribution > having normal distribution
normality1897
1897 Proc. Royal Soc. 1896–7 60 481 In any case, then, where the regression appears to be linear, Bravais' formulæ may be used at once without troubling to investigate the normality of the distribution.
1938 A. E. Waugh Elements Statist. Method vi. 95 In most statistical problems there is no a priori reason for expecting normality of distribution—no reason for believing in advance that the data will be distributed as are the coefficients of the expansion (1/ 2 + 1/ 2)n.
1968 Brit. Med. Bull. 24 211/1 The assumption of Normality is central to the most powerful statistical techniques.
1992 Age & Ageing 21 7/1 The data were tested for normality and where skewed were converted to log10 scale for analysis.
2007 A. C. Elliott & W. A. Woodward Stat. Anal. Quick Ref. Guidebk. ii. 25 Several graphical techniques can be used to test the normality of your data.
2. Chemistry. The concentration of a solution expressed as a proportion of the concentration of a normal solution (cf. normal adj. 6a). Cf. molarity n.
ΘΚΠ
the world > matter > chemistry > physical chemistry > solutions > [noun] > concentration > normality
normality1903
1903 Sci. Abstr. A. 6 315 Boric acid was agitated..with an excess of aqueous hydrochloric acids of different normalities.
1928 A. W. Wellings Volumetric Anal. ii. 41 The normality of the acid solution will be 0·1N. × 18·6/50.
1966 McGraw-Hill Encycl. Sci. & Technol. (rev. ed.) III. 361/2 In double-decomposition reactions normality may be an ambiguous concept unless referred to a specific reaction.
1987 K. A. Rubinson Chem. Anal. i. 13 It [sc. acetic acid] has one equivalent to donate in water, so the normality is the same as the molarity.
2003 R. Myers Basics of Chem. xiii. 161/1 Normality is similar to molarity, but rather than a measure of the number of moles per liter it measures equivalents per liter (N).
This entry has been updated (OED Third Edition, December 2003; most recently modified version published online March 2022).
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n.1839