请输入您要查询的英文单词:

 

单词 pioscope
释义

pioscopen.

Brit. /ˈpʌɪəskəʊp/, U.S. /ˈpaɪəˌskoʊp/
Origin: A borrowing from Greek, combined with an English element. Etymons: Greek πῖον , -scope comb. form.
Etymology: < Hellenistic Greek πῖον rich milk, use as noun (short for πῖον γάλα ) of neuter of ancient Greek πίων (adjective) fat ( < the same Indo-European base as Sanskrit pīvan- fat) + -scope comb. form. Compare German Pioskop (1906 or earlier). Compare earlier lactoscope n. at lacto- comb. form 1.
Now disused.
An instrument for estimating the purity of milk, in which the milk is viewed through the clear part of a glass plate and its colour compared with that of the other parts of the plate, which are painted in various shades of grey.The 1881 U.S. patent (no. 241,655) for Heeren's apparatus described it as a lactometer.
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
a1884 E. H. Knight Pract. Dict. Mech. Suppl. 682/2 Pioscope, a milk test by Prof. Heeren.
1909 L. H. Bailey Cycl. Amer. Agric. III. ii. viii. 178/1 Certain optical tests have been..used. These include the pioscope, and Feser's lactoscope.
This entry has been updated (OED Third Edition, June 2006; most recently modified version published online March 2022).
<
n.a1884
随便看

 

英语词典包含1132095条英英释义在线翻译词条,基本涵盖了全部常用单词的英英翻译及用法,是英语学习的有利工具。

 

Copyright © 2004-2022 Newdu.com All Rights Reserved
更新时间:2024/9/20 6:29:18