keto-


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keto-

or ket-
pref.
Ketone; ketone group: ketosis.

[From ketone.]
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

keto-

or before a vowel

ket-

combining form
indicating that a chemical compound is a ketone or is derived from a ketone: ketose; ketoxime.
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014

ke•to

(ˈki toʊ)

adj.
of or derived from a ketone.
[1910–15]

keto-

a combining form representing ketone: ketosteroid.
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
References in periodicals archive ?
In general the Schiff bases that are derived from salicylaldehyde exist mainly as the enol-tautomer with a variable contribution from the keto-tautomer (depending on the substituents) while those derived from 2- hydroxynaphthaldehyde are dominated by the keto- tautomer structure [5].
The previous studies indicate that the keto- tautomer is the more stable structure in both HNQ [7- 25] and HNQ-azo [26-31] (Fig.
As known from previous results [44] a keto- tautomer is more stable in an azo-compound than in the analogous Schiff base the same E divergences are observed in Table-5.