Definition of heterocyclic in English:

heterocyclic

Syllabification: het·er·o·cy·clic
Pronunciation: /ˌhetərōˈsīklik, -ˈsiklik
 
/

adjective

Chemistry
  • Denoting a compound whose molecule contains a ring of atoms of at least two elements (one of which is generally carbon).
    More example sentences
    • The majority of photosensitive molecules have a heterocyclic ring structure similar to that of chlorophyll or hemoglobin.
    • 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.

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Pronunciation: mɪˈlɔːd
noun
used to address an English nobleman