Meaning of bicycloannulation in English:

bicycloannulation

Pronunciation /bʌɪˌsʌɪkləʊˌanjʊˈleɪʃn/ /bʌɪˌsɪkləʊˌanjʊˈleɪʃn/

noun

Chemistry
  • A process in which a molecule undergoes one or more addition reactions leading to the formation of two adjoining rings.

Origin

1970s. From bi- + cyclo- + annulation.