| 释义 |
opticity|ɒpˈtɪsɪtɪ|
[ad. F. opticité optical quality: see optic a. and n. and -ity.]
In the brewing and food industries, the degree of optical activity of a solution, as a measure of its concentration.
1900Jrnl. Federated Inst. Brewing VI. 219 The pyridine solutions of osazones are..very suitable for determinations of opticity. 1924J. Grant Chem. of Breadmaking (ed. 4) xiii. 197 Two instruments in common use for the determination of the opticity of sugars and other optically active carbohydrates are the Laurent..and the Schmidt-Haensch. |