from The American Heritage® Dictionary of the English Language, 4th Edition
- n. An aqueous solution of copper sulfate, sodium hydroxide, and potassium sodium tartrate used to test for the presence of sugars and aldehydes in a substance, such as urine.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. an alkaline solution of copper sulphate which changes from blue to red in the presence of an aldehyde or a reducing sugar
from the GNU version of the Collaborative International Dictionary of English
- n. a standardized solution of cupric hydrate in sodium potassium tartrate, used as a means of determining the reducing power of certain sugars and sirups by the amount of red cuprous oxide thrown down.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. a liquid solution of copper sulfate and potassium tartrate and sodium hydroxide that is used to test for sugar in the urine; solution turns reddish when sugar is present
After Hermann von Fehling (1812-1885), German chemist.(American Heritage® Dictionary of the English Language, Fourth Edition)
From Hermann von Fehling, German chemist. (Wiktionary)