ket-

ket-
combining form
or keto-: ketone
    ketosis

ket-
combining form
or keto-
Etymology: International Scientific Vocabulary, from ketone
1. usually keto-
 a. : containing the ketone group
  < ketohexose >
  — in names of clases of compounds; compare ald- 1
 b. : containing a ketone group regarded as formed by replacement of two hydrogen atoms in a methylene group by oxygen — in names of specific organic compounds
  < ketopropionic acid >
  — compare ox-
 c. usually italic : containing an unmodified ketone group — in names of open-chain ketonic forms of specific sugars
  < keto-d-fructose >
  — compare aldehydo- 1
2. : related to a ketone
 < ketoxime >
— compare ald- 2