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单词 galactometer
释义

galactometern.

Brit. /ɡalakˈtɒmᵻtə/, U.S. /ˌɡælækˈtɑmədər/
Origin: Formed within English, by compounding; probably modelled on a French lexical item. Etymons: galacto- comb. form, -meter comb. form2.
Etymology: < galacto- comb. form + -meter comb. form2, probably after French galactomètre (1796 or earlier). Compare German †Galactometer (1818 or earlier; now Galaktometer ). Compare earlier lactometer n.
Now rare.
An instrument or device used to measure the specific gravity or fat content of milk; = lactometer n.
ΘΚΠ
the world > food and drink > food > food manufacture and preparation > equipment for food preparation > [noun] > instruments to test quality
lactometer1817
galactometer1826
amylometer1876
pioscopea1884
chondrometer1897
1826 Gardener's Mag. 1 204 Lactometer... Sold in Paris by the opticians under the name of galactometer.
1853 A. Ure Dict. Arts (ed. 4) I. 838 When our purpose is to determine the quality of cream, the galactometer may consist merely of a long graduated glass tube standing upright.
1897 N. Straus Let. 22 Mar. in L. G. Straus Dis. in Milk (1913) 46 Samples of..milk, perfectly good according to all the customary tests of color, taste, smell, and the galactometer.
1906 T. S. Westcott tr. F. Frühwald Ref. Handbk. Dis. Children 314 (caption) Galactometer for testing milk as sold in the market.
This entry has been updated (OED Third Edition, November 2010; most recently modified version published online March 2022).
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n.1826
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