[ nin-hahy-drin ]
/ nɪnˈhaɪ drɪn /
a white or yellow, toxic, crystalline or powdery compound, C9H4O3⋅H2O, that reddens when heated above 100°C, a monohydrate, soluble in water or alcohol: used primarily as a reagent to detect the presence of various amino acids.
Can You Ace This Quiz About “Compliment” vs. “Complement”?
Take this quiz to see if you really know the difference between “compliment” and “complement"!
Question 1 of 11
“Compliment” and “complement” had a shared meaning a long time ago, but today they are no longer interchangeable.
Origin of ninhydrin
From German, registered as a trademark for the drug in 1912
Words nearby ninhydrin
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020
British Dictionary definitions for ninhydrin
/ (nɪnˈhaɪdrɪn) /
a chemical reagent used for the detection and analysis of primary amines, esp amino acids, with which it forms a derivative with an intense purple colour
Word Origin for ninhydrin
C20: from the chemical name triketo hydrindene
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
Medical definitions for ninhydrin
[ nĭn-hī′drĭn ]
A poisonous crystalline oxidizing agent used as an analytic reagent.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.