Definition of ketene in English:

ketene

noun ˈkiːtiːnˈkitin

mass nounChemistry

1A pungent colourless reactive gas, used as an intermediate in chemical synthesis.
〔化〕乙烯酮
Chemical formula: CH₂CO
Example sentencesExamples
- It was reasoned that the free amino groups on lysine and hydroxylysine, known to be present in Type-I collagen, served as the primary nucleophilic sites for the ketene amide intermediate.
- In addition, we showed that a novel, light-activated DAP derivative could, on photolysis, chemically cross-link tissue through the reactions of the ketene intermediate.
- The structure of the collagen in the tissue may partially mask some of the available nucleophilic amine sites, whereas water may compete with the amines for the reactive ketene amide intermediate.
1. 1.1count noun A substituted derivative of ketene.
  烯酮类

Origin

Early 20th century: from ketone + -ene.

Definition of ketene in US English:

ketene

nounˈkētēnˈkitin

Chemistry

1A pungent colorless reactive gas, used as an intermediate in chemical synthesis.
〔化〕乙烯酮
Chemical formula: C₂H₂O
Example sentencesExamples
- In addition, we showed that a novel, light-activated DAP derivative could, on photolysis, chemically cross-link tissue through the reactions of the ketene intermediate.
- It was reasoned that the free amino groups on lysine and hydroxylysine, known to be present in Type-I collagen, served as the primary nucleophilic sites for the ketene amide intermediate.
- The structure of the collagen in the tissue may partially mask some of the available nucleophilic amine sites, whereas water may compete with the amines for the reactive ketene amide intermediate.
1. 1.1 A substituted derivative of ketene.
  烯酮类

Origin

Early 20th century: from ketone + -ene.

词汇	ketene
释义	Definition of ketene in English: ketene noun ˈkiːtiːnˈkitin mass nounChemistry 1A pungent colourless reactive gas, used as an intermediate in chemical synthesis. 〔化〕乙烯酮 Chemical formula: CH₂CO Example sentencesExamples It was reasoned that the free amino groups on lysine and hydroxylysine, known to be present in Type-I collagen, served as the primary nucleophilic sites for the ketene amide intermediate. In addition, we showed that a novel, light-activated DAP derivative could, on photolysis, chemically cross-link tissue through the reactions of the ketene intermediate. The structure of the collagen in the tissue may partially mask some of the available nucleophilic amine sites, whereas water may compete with the amines for the reactive ketene amide intermediate. 1.1count noun A substituted derivative of ketene. 烯酮类 Origin Early 20th century: from ketone + -ene. Definition of ketene in US English: ketene nounˈkētēnˈkitin Chemistry 1A pungent colorless reactive gas, used as an intermediate in chemical synthesis. 〔化〕乙烯酮 Chemical formula: C₂H₂O Example sentencesExamples In addition, we showed that a novel, light-activated DAP derivative could, on photolysis, chemically cross-link tissue through the reactions of the ketene intermediate. It was reasoned that the free amino groups on lysine and hydroxylysine, known to be present in Type-I collagen, served as the primary nucleophilic sites for the ketene amide intermediate. The structure of the collagen in the tissue may partially mask some of the available nucleophilic amine sites, whereas water may compete with the amines for the reactive ketene amide intermediate. 1.1 A substituted derivative of ketene. 烯酮类 Origin Early 20th century: from ketone + -ene.
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