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词汇 heterocyclic
释义

Definition of heterocyclic in English:

heterocyclic

adjectiveˌhɛt(ə)rə(ʊ)ˈsʌɪklɪkˌhɛt(ə)rə(ʊ)ˈsɪklɪkˌhɛdərəˈsaɪklɪk
Chemistry
  • Denoting a compound whose molecule contains a ring of atoms of at least two elements (one of which is generally carbon).

    〔化〕杂环(化合物)的

    Example sentencesExamples
    • The majority of photosensitive molecules have a heterocyclic ring structure similar to that of chlorophyll or hemoglobin.
    • Cooking meats at high temperatures creates chemicals called heterocyclic amines that are otherwise not present in uncooked meats.
    • The nucleotides found in cells are derivatives of the heterocyclic highly basic, compounds, purine and pyrimidine.
    • Also included are heterocyclic amine compounds, which are formed when meats and eggs are cooked or grilled at high temperatures and also found in cigarette smoke.
    • Unlike hydrocarbon based aromatics, which react most readily with electrophiles, perfluoro-aromatics and heterocyclic ring systems react better with nucleophiles.

Definition of heterocyclic in US English:

heterocyclic

adjectiveˌhedərəˈsīklikˌhɛdərəˈsaɪklɪk
Chemistry
  • Denoting a compound whose molecule contains a ring of atoms of at least two elements (one of which is generally carbon).

    〔化〕杂环(化合物)的

    Example sentencesExamples
    • Unlike hydrocarbon based aromatics, which react most readily with electrophiles, perfluoro-aromatics and heterocyclic ring systems react better with nucleophiles.
    • Cooking meats at high temperatures creates chemicals called heterocyclic amines that are otherwise not present in uncooked meats.
    • Also included are heterocyclic amine compounds, which are formed when meats and eggs are cooked or grilled at high temperatures and also found in cigarette smoke.
    • The majority of photosensitive molecules have a heterocyclic ring structure similar to that of chlorophyll or hemoglobin.
    • The nucleotides found in cells are derivatives of the heterocyclic highly basic, compounds, purine and pyrimidine.
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