单词 | aerometric |
释义 | aerometricadj. 1. Of or relating to a method for measuring the density or relative density of a liquid, esp. milk and beer, by means of a set of small hollow spheres or ‘beads’.Each bead is marked with the relative density of a liquid in which it will neither rise nor sink. A set of them corresponding to different densities of liquid is put into the liquid to be tested; the bead that remains suspended, neither rising nor sinking, corresponds to the density of the liquid. ΚΠ 1817 Farmer's Mag. 18 220 The Aerometric Beads will serve to indicate..the relative qualities of different milks. 1887 Science 6 May 436/1 Sexhlet..reports that he obtained by it [sc. a milk-testing apparatus] results agreeing within 0.1 per cent with those of his aerometric method. 1914 O. F. Hunziker Condensed Milk & Milk Powder xxx. 200 Milk. Specific gravity. Aerometric method, by means of the Quevenne lactometer. 1963 Agric. Hist. 37 222/1 The specific gravity of the milk was tested as it came from the cow, and after the cream had been removed... This apparatus consisted of aerometric beads. 1997 R. S. Singhal et al. Handbk. Indices Food Quality iii. 89 Aerometric specific gravity measurement has been recommended for calculation of added water in fruit and vegetable juices. 2006 Jrnl. Food Engin. 77 967/1 Measurements... Apparent and real density of fermenting and attenuated mash—by aerometric method (after filtration). 2. Of or relating to the measurement of the mechanical properties of air and other gases; (in later use chiefly) of or relating to the measurement of air pollutants. ΚΠ 1850 London, Edinb., & Dublin Philos. Mag. 37 87 When Messrs. Watkins and Hill have got the construction of the aërometric balance perfected, I should feel great interest in the results obtained. 1861 Sci. Amer. 29 June 236/3 An Improvement in Aerometric Balance. I claim a barometer composed of a balance beam having one of its arms..of wood, and the other..of metal. 1964 Jrnl. Health & Human Behavior 5 154/2 A state public health agency undertook an aerometric survey in the town. 1999 Scout Rep. Archives (Electronic text) 24 Nov. The Environmental Protection Agency's Aerometric Information Retrieval System... Data Maps provide data on pollutants. 2003 Jrnl. Air & Waste Managem. Assoc. (Nexis) 13 816 Increased attention has been devoted in recent years to the use of ambient aerometric data to empirically evaluate the response of secondary air pollutants to reductions of emissions of primary pollutants. This entry has been updated (OED Third Edition, June 2008; most recently modified version published online December 2021). < adj.1817 |
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